Question

Simplify each expression

1. -7(6v+4)+3v(v+3)

2. -3k(2k-3)+7(k-7)

Answer 1

1. 3v^2 - 33v -28

2. -6k^2 + 16k - 49

Explanation:

1. (-7 x 6v) + (-7 x 4) + (3v x 1v) + (3v x 3)

-42v-28+3v^2+9v

3v^2 + 9v - 42v -28

3v^2 - 33v -28

2. (-3k x 2k) + (-3k x -3) + (7 x 1k) + (7 x -7)

-6k^2+9k+7k-49

-6k^2 + 16k -49

Answer 2

1. -7(6v+4)+3v(v+3)
-42v-28+3v ²+9v
-33v-28+3v ²
=3v ²-33v-28

2. -3k(2k-3)+7(k-7)
-6k ²+9k+7k-49
= -6k ²+16k-49