Question

Am I right?

In the function f(x) = 5(x^2 − 4x + ____) + 15, what number belongs in the blank to complete the square?

Answer 1

The number 4 belongs in the space because you get half of the coefficient and then square it, correct?

Answer 2

I'm GREEEEEEN OMG. :D :D :D
AS OF 12:22 PM OF 1/7/2015
AAAHHHHHH

Answer 3

LOL

Answer 4

@ganeshie8 @undeadknight26 @blurbendy

Answer 5

\(\Huge \checkmark\)

Answer 6

\(\large \begin{align} \color{black}{(x+2)^2=x^2+4x+4\hspace{.33em}\\~\\
}\end{align}\)

Answer 7

Yay thanks ^-^

Answer 8

sry

\(\large \begin{align} \color{black}{(x-2)^2=x^2-4x+4\hspace{.33em}\\~\\
}\end{align}\)

Answer 9

Can you help me in one more? I'll tag you.