sqlPAIN:
I know how to solve them like this, you solved them by factoring right? I said the first one should be solved with Quadratic formula a.k.a, Almighty formula .... While the second should be solved with Completing the square method ....Thanks though.... Anytime I use those two methods to solve the questions respectively, I always end up with the wrong answer. I just want someone to solyit using those methods so that I can study their solutions and figure out what I'm doing wrong.

sqlPAIN:
I know how to solve them like this, you solved them by factoring right? I said the first one should be solved with Quadratic formula a.k.a, Almighty formula .... While the second should be solved with Completing the square method ....Thanks though.... Anytime I use those two methods to solve the questions respectively, I always end up with the wrong answer. I just want someone to solyit using those methods so that I can study their solutions and figure out what I'm doing wrong.

Chimaobi302:
(1)

x²+2x-8=0
x²+4x-2x-8=0
x(x+4)-2(x+4)=0
(x-2)(x+4)=0
x=2 or x=-4
{x} = {2,-4}....

(2)
x²-3x-18=0
x²+3x-6x-18=0
x(x+3)-6(x+3)=0
(x+3)(x-6)=0
x= -3 or x=6
{ x } = {-3,6 }

Chimaobi302:
(1)

x²+2x-8=0
x²+4x-2x-8=0
x(x+4)-2(x+4)=0
(x-2)(x+4)=0
x=2 or x=-4
{x} = {2,-4}....

(2)
x²-3x-18=0
x²+3x-6x-18=0
x(x+3)-6(x+3)=0
(x+3)(x-6)=0
x= -3 or x=6
{ x } = {-3,6 }

sqlPAIN:
The first one has to be solved with the quadratic formula, I know how to solve it with other methods but when I use quadratic, I keep getting wrong answers.....


The second one has to be solved with completing the square method..

sqlPAIN:
The first one has to be solved with the quadratic formula, I know how to solve it with other methods but when I use quadratic, I keep getting wrong answers.....


The second one has to be solved with completing the square method..

christejames:
People wey get maths brain full ground ooo



Whenever I see numbers in combination of alphabets and it's terms mathematical question , my brain will just go numb and fall into deep slumper ... Me and mathematics na two parallel lines.



Just the day before yesterday, my neighbor brought me her daughter's first term mathematical examination questions for JSS3 to solve (from a Federal Technical College o)... O mehn! I collected it, thinking it will be baby questions of 1 + 1 ... I see alphabet and numbers my brain wan run comot for my head.

, I said to myself, a graduate will not embarrass his generation like this biko because I can't return the paper to her unattended to. Thank God , a part of my brain was still left in my 'okpo skull' then I remembered my younger brother is studying at FUTO, na so I snap the questions and sent to him to help me out ooo ...


The guy with his friends I presumed solved the questions and sent me the snap shots , na so I copy everything and passed across to my neighbor ooo ...


Although I told her it was my younger brother that helped me out, . She was glad!

sqlPAIN:
The first one has to be solved with the quadratic formula, I know how to solve it with other methods but when I use quadratic, I keep getting wrong answers.....


The second one has to be solved with completing the square method..

sqlPAIN:
I know how to solve them like this, you solved them by factoring right? I said the first one should be solved with Quadratic formula a.k.a, Almighty formula .... While the second should be solved with Completing the square method ....Thanks though.... Anytime I use those two methods to solve the questions respectively, I always end up with the wrong answer. I just want someone to solyit using those methods so that I can study their solutions and figure out what I'm doing wrong.

Chimaobi302:
(1)

x²+2x-8=0
x²+4x-2x-8=0
x(x+4)-2(x+4)=0
(x-2)(x+4)=0
x=2 or x=-4
{x} = {2,-4}....

(2)
x²-3x-18=0
x²+3x-6x-18=0
x(x+3)-6(x+3)=0
(x+3)(x-6)=0
x= -3 or x=6
{ x } = {-3,6 }