Question

9m2 + 8m - 6(-)7m2 - 3m + 3

Answer 1

Step-by-step explanation:

9m²+8m-6-7m²-3m+3

first write like terms

9m²-7m2+8m-3m-6+3

second ad subtract the terms

2m²+5m-3

factorize

2m²-m+6m-3

m(2m-1)+3(2m--1)

(m+3)(2m-1)

m=-3. m=1/2

Answer 2

Answer:

$2 {m}^{2} + 5m - 3$

Step-by-step explanation:

$9 {m}^{2} + 8m + ( - 6) + ( - 7 {m}^{2} ) + ( - 3m) + 3$

Combine like terms,

$9 {m}^{2} + - 7 {m}^{2} + 8m + ( - 3m) + ( - 6) + 3 \\ = 2 {m}^{2} + 5m + ( - 3)$

Please see if you understand. ^^