Question

Choose the correct product of (5x + 4)2.

25x2 + 40x + 16

25x2 − 16

25x2 + 16

25x2 − 40x + 16

Answer 1

distribute the 2

Answer 2

its either a or c

Answer 3

is that 2 a square root??

Answer 4

its ^2 meaning multiply

Answer 5

Hello, this is all to the power of two. You want to expand the entire binomial.

(5x + 4)(5x + 4)

Now use the foil method

25x^2 is the first term, can you do the other 3?

Answer 6

its A

Answer 7

5x * 5x
5x * 4x
4 * 5x
4 * 4

Multiply these, then add the like terms, and you're done!

Answer 8

25x
20x
20x
16
= 25x+40x+16