Question

Pls help me answer these algebra questions:)

Answer 1

See below for answers

Explanation:

Problem A:

`2x^2+8x-1+5x^2-2x-8`

`2x^2+5x^2+8x-2x-1-8`

`7x^2+6x-9`

Problem B:

`-5x^2-2x+10-x^2+7x+5`

`-5x^2-x^2-2x+7x+10+5`

`-6x^2+5x+15`

Problem C:

`4x^2y-2xy^2+9xy^2-x^2y`

`4x^2y-x^2y-2xy^2+9xy^2`

`3x^2y+7xy^2`

Problem D:

`7x^2-2x^2y+4xy^2-y^3+2x^2+9x^2y+4y^3`

`7x^2+2x^2-2x^2y+9x^2y-y^3+4y^3+4xy^2`

`9x^2+7x^2y+3y^3+4xy^2`