Question

Simplify the difference.

(7w2 – 7w – 8) – (5w2 + 2w – 3)

a. 2w2 – 5w – 11

b. 12w2 – 5w – 11

c. 2w2 – 9w – 5

d. 12w2 + 9w + 5

Answer 1

@GoldPhenoix help

Answer 2

So you have (7w2 – 7w – 8) – (5w2 + 2w – 3).
When you subtracting a parenthesis by a parenthesis, then the operation sign changes. So what would – (5w2 + 2w – 3). become?

Answer 3

What would (5w2 + 2w – 3) become if you change the positive/negative around?