Question

What value of c makes the polynomial below a perfect square ?

x^2+14x+c

Answer 1

x^2 +bx + c

We have an equation of this form :D
divide your b term by 2.
Then square the result, and that is c!

Example:\[x^2 +16x + c\]\[\frac{ 16 }{ 2 }=8\]\[8^2=64\]\[x^2+16x + 64 = (x+8)^2\]
A perfect square! :)

Answer 2

So its 2 ?

Answer 3

Um I actually said X^2 +14x+c ... 14 not 16 . but anyways . wouldn't 49 be the correct answer ? i'm having trouble checking myself.

Answer 4

yes, i was just giving an example :)
49! gj