Question

Please answer my question ASAP

Answer 1

Answer:d

Explanation:

Answer 2

C.
`13x^2-10x+17`

Explanation:

`\left(3x^2+11x+20\right)+\left(10x^2-21x-3\right)`

Remove brackets:

`3x^2+11x+20+10x^2-21x-3`

Group similar terms together:

`3x^2+10x^2+11x-21x+20-3`

Add/subtract the
`x^2:`

`13x^2+11x-21x+20-3`

Add/subtract the
`x:`

`3x^2-10x+20-3`

Add/subtract the numbers:

`13x^2-10x+17`