Question

Am I right?

Find the product of (x + 7)^2.

x^2 - 14x + 49
x^2 + 14x + 49
x^2 - 49
x^2 + 49

Answer 1

what do u think?

Answer 2

\[(x+7)^2 \]
Is the same thing as \[(x+7)(x+7)\]

And x times x is x^2 and 7 x 7 is 49 so its D. right?

Answer 3

\[(a+b)(a+b) \color{red}{\ne} a^2+b^2\]

Answer 4

no sorry A
(a+b)^2=a^2+2ab+b^2