Question

(9x³ + 8x² - 7x + 4) - (2x³ + 5x²
- 2x + 1)

Answer 1

`7x^(3)+3x^(2) -5x+3`

Subtract
`2x^(3)` from
`9x^(3)` ---->
`7x^(3)`

Subtract
`5x^(2)` from
`8x^(2)` ---->
`3x^(2)`

Add
`2x` to
`-7x` ---->
`-5x`

Subtract -1 from 4 ----> 3

I hope this helps!