Question

Simplify the expression below.

Answer 1

14
`s^(4)` - 7s² + 15

Explanation:

Remove the parenthesis on the first 2 and distribute the third by - 1

= 12
`s^(4)` - 6s² + 4s + 6
`s^(4)` - 4s + 27 - 4
`s^(4)` - s² - 12 ← collect like terms

= 14
`s^(4)` - 7s² + 15