Question

How do you write `(5x^3 − 5x − 8) − (2x^3 + 4x + 2)` in standard form?

Answer 1

`3x^3-9x-10`

Explanation:

`(5x^3-5x-8)-(2x^3+4x+2)`

`cancel(color(red)(5x^3))-5x-8-cancel(color(red)(2x^3))-4x-2`

`3x^3-cancel(color(green)(5x))-8-cancel(color(green)(4x))-2`

`3x^3-9x-cancel(color(blue)(8))-cancel(color(blue)(2))`

`3x^3-9x-10`