Question

PLEASE HELP ITS MATH

2x2 + 6x – 7x + 8 – 3x2 + 1
A. 2x2 + x + 9
B. –2x2 – x – 9
C. –x2 – x + 9
D. x2 + 9

Answer 1

`-x^2-x+9`

Explanation:

`2x^(2) +6x-7x+8-3x^2+1`

`2x^(2) +6x-7x+9-3x^2` Add 8 + 1

Combine like terms

`2x^(2) +6x-7x+9-3x^2`
`6x-7x=-x`

`2x^2-x+9-3x^2`

Combine like terms

`2x^(2) -x+9-3x^2`
`2x^2-3x^2`

`-x^2-x+9`

Answer 2

C. -x^2-x+9

Explanation:

Combine Like Terms:

what we have 2x^2+6x−7x+8−3x^2+1

=(2x^2−3x^2)+(6x+−7x)+(8+1)

=−x^2+−x+9