## mckenzieandjesus one year ago Simplify the difference (7w2 – 7w – 8) – (5w2 + 2w – 3) I got (w-5)(2w+1) but thats not on my answer choices.. 12w2 + 9w + 5 2w2 – 9w – 5 2w2 – 5w – 11 12w2 – 5w – 11

1. mckenzieandjesus

@arivillafana

2. mckenzieandjesus

@jim_thompson5910

3. mckenzieandjesus

@campbell_st

4. jdoe0001

$$\bf (7w^2-7w-8)-{\color{brown}{ (5w^2+2w-3) }} \\ \quad \\ (7w^2-7w-8){\color{brown}{ -5w^2-2w+3 }} \\ \quad \\ 7w^2-7w-8-5w^2-2w+3\implies ?$$

5. mckenzieandjesus

10w?

6. jdoe0001

10w? whatever happened to the other two terms?

7. mckenzieandjesus

huh?

8. jdoe0001

reduce the like terms notice the like terms $$\bf {\color{blue}{ 7w^2}}{\color{brown}{ -7w}}-8{\color{blue}{ -5w^2 }}{\color{brown}{ -2w }}+3\implies ?$$

9. campbell_st

just group the like terms $7w^2 - 5w^2 = ?$ -7w - 2w = ? -8 + 3 and what's left is the solution

10. mckenzieandjesus

$7w^2-5w^2=24 -7w-2w=-9 -8+3=-5$

11. mckenzieandjesus

What would I do next?

12. anonymous

(7w^2 – 7w – 8) – (5w^2 + 2w – 3) 7w^2 - 7w -8 - 5w^2 - 2w + 3 Distributed the negative 7w^2 - 5w^2 - 7w - 2w - 8 + 3 Rearranged 2w^2 - 7w - 2w - 8 + 3 Solved 7w^2 - 5w^2 2w^2 - 9w - 8 + 3 Solved -7w - 2w 2w^2 - 9w - 5 <---Answer Solved -8 + 3

13. mckenzieandjesus

Oh yay thats what i have marked down already :)

14. campbell_st

$7w^2 - 5w^2 = 2w^2$ 7w - 2w = 5w -8 + 3 = -5 so the answer is $2w^2 + 5w - 5$