peacettw:

I am all for efficiency. Why should I task my grey cells in solving a problem that already has an answer? To prove what exactly and to whom? I will rather focus on problems yet unsolved like why on earth as a nation do we have a ghost president. Goodluck finding the answer to that in Google.

inschool:
Akin might be a little good but he need to improve....moreover I still doubt he typed the solution with reasoning in three minutes...except if he was reading the questions as it was being
typed by youngmillonair

AkinPhysicist:


Its all for fun. Moreover, If you have not solved a problem, then does it matter if it has been solved a million time by a million different people? The satisfaction of solving the problem yourself, is EVERYTHING. IMAO

peacettw:

Nahhh. If a problem has been solved already, it takes away the fun for me. But give me a problem yet unsolved and the thrill begins.

hernandson:
yeah I know bro. depends on how you pursue your dreams. if your doing elect elect in a uni,they won't teach u enough practical..buh the individual should do that..during IT and stuffs

hernandson:
I would keep that in mind,buh you wouldn't want to be a teacher would you?

AkinPhysicist:


Not in the nearest future. I am currently a full time researcher. Its likely within a decade on so I would return to academia but not a the moment. But, I am available to share/exchange ideas whenever you feel like.

AkinPhysicist:
Okay. CACAWA before I go let me educate you. This is how you solve that problem without taking SQUARES:

You count.

Reduce the problem to a + b = 15. Then count.

1 + 14 is disqualified do you know why?
2 +13 also disqualified do you know why?
3 + 12 also disqualified do you know why?
4 + 11 also disqualified do you know why?
5 + 10 also disqualified do you know why?
go down the list and you will see only 8 and 7 qualifies therefore x = a^2 = 7^2 = 49 OR use b to get the same result.

Cacawa you are a formally trained mathematician but you are not creative. Find out why this method works and get back at me later. I have things to do. BY THE WAY IT TOOK ME LESS THAN A MINUTE USING THE COUNTING METHOD. TRY IT.




Kelvinreality - after giving Cacawe all night to answer the question above, I have concluded he is incapable of basic logic. Here is the explanation:

x^1/2 + (x+15)^1/2 = 15. If an integer solution exist, then you can obtain it by counting. Here is how it works.

Let a = x^1/2 and b= (x+15)^1/2 so the eq. becomes a + b =15. So choose a pair of integer a and b whose sum gives you 15. However, NOT all pairs qualify because a^2 has to be equal to b^2 - 15 (since both have to be equal to x). So all you have to do is count from 0 to 15 to see which pair qualifies. Clearly any pair with a from 0 to 5 fails because in this case a^2 is clearly less than b^2 -15. You don't even need to do any calculation - all you need to know is if b^2 -15 is greater (or smaller) than or equal to a^2. If its equal then you have your solution. No calculator required. Nothing. Just basic logic of counting.

AkinPhysicist:


Okay sir - thanks for showing us the limitation of your own abilities. But if you asked nicely how I did it, I would have told you

YungMillionaire:
LOL All these people saying my problem was cheap too easy were nowhere to be found yesterday when others were solving it. Nigerians and their oversabi. You offer prize to promote intelligence and creativity the criticize you. And if you don't do it, the complain that you are not giving back to society. My people are funny. Once again, congrats to Akin. It takes vicious speed and accuracy to do what he did. And the guy does not even want the money for himself. BIG HEART BIG BRAIN. Tuale baba!

AnnaGray:


I don't get this, if a chicken raises two legs, then it falls down. Poor chickens.

AnnaGray:


I don't get this, if a chicken raises two legs, then it falls down. Poor chickens.

inschool:
Akin might be a little good but he need to improve....moreover I still doubt he typed the solution with reasoning in three minutes...except if he was reading the questions as it was being
typed by youngmillonair

AkinPhysicist:


Archaic and unacceptable? This is not a thread about mathematical etiquette. The OP wanted creative/original solution to a problem. And I supplied it. What Okocha did to Khan (the German goalkeeper) was considered disrespectful but football like math does not give a damn who feels disrespected. The question you should ask yourself is simple:- did I provide a solution for the problem? If then answers is yes, then don't waste your time pontificating.

inschool:
Akin might be a little good but he need to improve....moreover I still doubt he typed the solution with reasoning in three minutes...except if he was reading the questions as it was being
typed by youngmillonair

StarBukola:
when we could have split the the money,70 for me 30/for u

inschool:

I didn't show my self...but u need to improve on ur approach to engaging argument/discussions with people...

AkinPhysicist:


So how did you go through school? Since, most of education relies on solving problems that have already been solved. Btw, how many original problems have you solved so far?

naturalwaves:

Your solution lacks a mathematical pathway. When you solve things here, you should consider other viewers as well. A good example was the one you solved for the first puzzle, that was better. At least, people can follow up that solution unlike the second one you posted.

peacettw:

Schools are for there for a purpose and that is to help cultivate young minds into solving unknown questions and not spend needless time addressing issues with known answers. Are you by chance still a student? If so, it kinda explains a lot.
Left school donkey years ago and to answer your second question, I am currently spear heading several researches in uncharted territories that hopefully will help the scientific world in curtailing the rising epidemic of non communicable diseases. What about you?

Horllamideh:

E sha ja owo tasere sowo eeyan yin ninu #10k yen.....Mo jeri yin juu

AkinPhysicist:


If you don't understand then ask questions. Here is my response to someone who was wise enough to seek clarification:

Kelvinreality - after giving Cacawe all night to answer the question above, I have concluded he is incapable of basic logic. Here is the explanation:

x^1/2 + (x+15)^1/2 = 15. If an integer solution exist, then you can obtain it by counting. Here is how it works.

Let a = x^1/2 and b= (x+15)^1/2 so the eq. becomes a + b =15. So choose a pair of integer a and b whose sum gives you 15. However, NOT all pairs qualify because a^2 has to be equal to b^2 - 15 (since both have to be equal to x). So all you have to do is count from 0 to 15 to see which pair qualifies. Clearly any pair with a from 0 to 5 fails because in this case a^2 is clearly less than b^2 -15. You don't even need to do any calculation - all you need to know is if b^2 -15 is greater (or smaller) than or equal to a^2. If its equal then you have your solution. No calculator required. Nothing. Just basic logic of counting.

AkinPhysicist:


I thought we were talking about solving math problems. No yawa. I am no longer a student but I still enjoy solving math/physics problems for fun. That will never change. Not in a million years. Yes, it explains a lot but not what you think. Anyway, I am humbly doing research in Quantum computing/low temperature physics.

naturalwaves:

You are so funny bro. How will you start up a mathematical solution with " If an integer solution exists". That's not right at all. Okay, what if an integer solution does not exist? What universally accepted principle are you going to use for it? Show it! You can't be substituting unknowns with integers based on logic except incase of objectives or something that requires a fast answer and thaat is not the case here.

Uggh! Not again. These people and their wahala Assumptions are part of mathematics. Look it up. If an integer solution exists you will find it. If you don't find it then you will KNOW that an integer solution does not exist. This itself is KNOWLEDGE you did not have prior to the count test. In the absence of an integer solution, then a more general approach can then be used to solve the problem.

peacettw:

Lol. I thought we were too until you changed the subject to enquire about my sojourn during my school days.

Akin, I beg to rest my oars here. Find it tiring going back and forth on any topic. Glad to see that you love maths and physics and making it your life's work. Those were my best subjects too until medicine whisked me away.
On a lighter note, I still believe you cheated though

AkinPhysicist:


Ok ma - have a nice day. As for cheating - its a free world believe what you wish no yawa

peacettw:

On a lighter note, I still believe you cheated though

AkinPhysicist:


Uggh! Not again. These people and their wahala Assumptions are part of mathematics. Look it up. If an integer solution exists you will find it. If it you don't find it then you will KNOW that an integer solution does not exist. This itself is KNOWLEDGE you did not have prior to the count test. In the absence of an integer solution, then a more general approach can then be used to solve the problem.

YungMillionaire:


Funny - all these people saying this guy cheated. Have you guys ever considered the possibility that the guy is just very intelligent? Nigerians hardly believe anything good can come out of their country. How sad!