Question

Please help i need to pass math

Answer 1

B

Explanation:

topic: polynomials

Just add like terms

Answer 2

`6 {x}^(2) - 5x - 4`

Explanation:

`(2 {x}^(2) - 3x + 1) + (4 {x}^(2) - 2x - 5) = \\ 2 {x}^(2) + 4 {x}^(2) - 3x - 2x + 1 - 5 = \\ 6 {x}^(2) - 5x - 4`