Question

Need help on polynomial expressions

Answer 1

Answer:- 10
`m^(2)` + 3m -9

Step-by-step explanation: Given ;

A= -3 -m

B= 3m -5
`m^(2)`

2B + 3A

solution

2B + 3A

substitute A and B in the formula

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

6m - 10
`m^(2)` - 9 - 3m group like terms

- 10
`m^(2)` + (6m -3m) -9

- 10
`m^(2)` + 3m -9