Question

Please help! Simplify the polonomial​

Answer 1

14
`s^(4)` - 7s² + 15

Explanation:

Given

(12
`s^(4)` - 6s² + 4s) + (6
`s^(4)` - 4s + 27) - (4
`s^(4)` + s² + 12) ← distribute parenthesis

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

= 14
`s^(4)` - 7s² + 15