1. -x(5x-4)

Question

A.4x^2-5x
B. -5x-4x
C. 5x+4x
D. -5x^2+4x

2. 5k^2(-6k^2-2k+6)
A. -30k^3+3k^2+30k
B. 30k^4-10k^3+11k^2
C.-k^4+3k^3+11k^2
D. -30k^4-10k^3+30k^2.

My answers. 1.c 2. a
Thank you

Answer 1

1.c - No -- x times x = ?
2. a - No

Answer 2

Would 1. Be b? And 2 b?

Answer 3

No and no.

You're on your own now.

Answer 4

just do them step by step

-x(5x-4)
(-x)(5x) + (-x)(-4)
...

5k^2(-6k^2-2k+6)
(5k^2)(-6k^2) + (5k^2)(-2k) + (5k^2)(6)