Question

400 x^2+680+289

Answer 1

i believe it is to factor the expression

Answer 2

Can anyone tell me wat the answer is?
You have to factor it..... its a perfect square trinomial!

Answer 3

and the expression should be corrected to \[400x^2+680x+289\]

Answer 4

Found some details here
http://openstudy.com/updates/5095a758e4b0d0275a3ca9e2

Answer 5

yahhh it is

Answer 6

two birds in one shot for @CliffSedge . haha

Answer 7

i don't get it plzzz someone help me!!!!! :(

Answer 8

Let's start with an easier example first so you can see what's going on.

Take \((2x+3)^2\)
= \((2x+3)(2x+3)\)
= \(4x^2+12x+9\), yes?

Answer 9

4 = 2^2
9 = 3^2, and
12 = 2×2×3

Answer 10

Knowing that \((a+b)^2\) = \(a^2+2ab+b^2\),
Once you find a and b, you have the factored form, by putting them in \((a+b)(a+b)\)

Answer 11

Since you know that 400 = 20^2 and 289 = 17^2, you're done.