Question

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

Answer 1

`2 {m}^(2) + 5m - 3`

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. ^^

Answer 2

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