Question

Check my work on special products involving binomials and polynomials?

Answer 1

Find the product of (x + 5)^2
x2 - 10x + 25

x2 - 25

x2 + 25

x2 + 10x + 25

Answer 2

I chose D

Answer 3

@IMStuck
@Broskishelleh

Answer 4

how did u get D

Answer 5

I am pretty sure because it comes out to x^2+5x after distributing the x and 5x+25 after distributing the 5, so then we combine like terms (5x+5x) and we have
x^2+10x+25

Answer 6

Perfect ! nice job :)

Answer 7

Thanks! Are there any special cases in which that type of reasoning wouldn't work?

Answer 8

it works always

Answer 9

you may also memorize this binomial identity :
\[\large (a+b)^2 = a^2 + 2ab + b^2\]

Answer 10

Okay! Thanks a ton!!!