Tundeks's Posts
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Hemmanity:it's very possible as well as not possible. just keep praying and read hard. |
Mrpulse911:it's late already, Don, t know if jamb may still extend it. |
Umartins1:U, re a genius, weldone bro, keep up the good work. Wishing u more power to ur elbow. I was confused on how u arrived at the answer, I later read more on it. |
Completing a Square With some quadratics, it's possible to look at them and - at a glance, recognize that they are almost perfect squares. For example, consider the following: x 2 + 6x + 8 If you've been working with quadratics for very long (or if you've done the previous reading in this unit), you know that x 2 + 6x + 9 is a perfect square - it's the square of (x + 3). So what would we have to do to x 2 + 6x + 8 to turn it into a perfect square? That's easy! We'd just need to add 1 to it! So let's see if we can formulate a method for completing squares. We know that (x + k) 2 = x 2 + 2kx + k 2, which should give us an idea... If we take half of the coefficient of x and square it, we get the constant we would need in order to have a perfect square. Example #1 What would we have to add to x 2 + 10x + 21 to make it a perfect square? Solution #1 Take half of 10 (the coefficient of x ), which is 5. Now square the 5 and you get 25. In order to be a perfect square, the constant term must be 25. Since it's actually 21, we need to Add 4 to complete the square. Example #2 What would we have to add to x 2 - 4x + 5 to make it a perfect square? Solution #2 Take half of -4, and you get -2. Square that and you get 4. Thus, the constant term must be 4. Since it's actually 5, we need to subtract 1 to complete the square. But what if the coefficient of x 2 is something other than 1? Well, that changes it a bit. If the coefficient of x 2 is a perfect square, we can still complete the square easily. The rule is the same as before, except that now, after dividing the coefficient of x by 2, we also divide it by the square root of the coefficient of x 2. Then we square the result. Example #3 What would we have to add to 9x 2 + 6x + 3 to make it a perfect square? Solution #3 The coefficient of x 2 is 9, and its square root is 3. Divided the coefficient of x by 2 (that gives you 3), and then divide it by 3, which gives you 1. Square the 1, and you get 1. The constant term has to be 1, but it's actually 3, so we must subtract 2 to complete the square. Example #4 What would we have to add to 4x 2 + 20x + 21 to make it a perfect square? Solution #4 The square root of 4 is 2. Divide 20 by 2, and then divide that by 2, and you get 5. Square the 5, and we find that our constant term must be 25. Since it's actually 21, we need to add 4 to complete the square. |
FrancisTony:u, re very funny, is dt how u,ll be guessing in exam hall. the definition I can give post ume exam is dt u must know all the question. |
Whizsam:u, ll write post ume exam |
2bolaji:Na real ogbonge battery, very strong like kilode. |
Kingsean:For mtn, no free mb for now but u can tweak ur phone and make use of mtn bis. Only if u can take d risk cos ur phone may got brick. Use airtel subscription 1500, 2gig for 1month or use glo bis 1k for 3gig( u, ll change ur imei) |
justmetoday:when u root, u, ll have full access to control ur phone without any restriction. Anytime infinix release update via Ota, wen u upgrade, ur phone may got brick (it will hang on infinix logo and won, t boot when ur phone restart) during the process. |
Weirdman:2days, |
Oxasbi:lol, buy it and cut it into half xo dt it can meet ur taste. |
obisite:at times wen u do Android like that, it may not boot again, some will even refused to switch on, it, ll only require u to remove the battery and reinsert again. |
invisibility:That, s the major reason why I didn't, buy this phone cos if it hang na problem and Android phone is prone to hanging at times. If ur phone hang, u, ll have to reset it if it has reset button, but if does,n, t have, u, ll need to fix it. |
AgapeCharis:it depends on u, Tecno l6 bt3 is very strong. u can use it for 2days without charging |
tyconcepts:lol, if u used strong Tecno phone you will not want to use other Chinco phones |
tyconcepts:lol, if u used strong Tecno phone you will not want to use other Chico phones |
for airtel users, use text message and send JOIN to 141 and get free 500mb or 1gig or 2gig. Enjoy while it last. Use *123*133# to check your data |
for airtel users, use text message and send JOIN to 141 and get free 500mb or 1gig or 2gig. Enjoy while it last. Use *123*133# to check your data |
horiyomi:u, ll purchase DE card and register online, after dt, do d photocopy of the slip and attach ur credentials with it and submit in any jamb office. DE candidates used to write Eksu post ume, be preparing for it. |
watzz:it's good d way u purchase it in shop/slot. if anything happens to the phone, u can easily return it. |
mrvocalprowess:lol, let's try it now |
IdeeEsperanza:what wrong wit ur techno, get l6 and enjoy the everlasting battery. |
aristogabby:Sowie en, ur 5v 3A had spoilt, no more fast charging for u. U can go to market and purchase another charger or u call Jumia for replacement of charger for charger replacement if possible. |
ogunsinamayowa:COC will appear on ur result, print ur result. |
francawilson:U,ll be able to track on China post when ur parcel reach China. It, ll take like a month before ur parcel reach its destination. |
gonaij:that, s good, keep up the good work. |
olanreyman:what did u gain in reducing d brightness to lowest, u want to reduce brightness to 0% and still expecting to see properly, put it in automatic or u reduce it to 10%. |
Rubbers:u can go for ur right choice |
Rubbers:gold, copper and black colour are the best. |
I wonder what u people keep on discussing on what'sapp dt u can, t post here on nairaland |
DNDROID:lol, let it kill u make I see, those that are using 4500/5000mah. battery didn't, kill them |

Thinking of the copper alrdy