Question

How do you factor `c^3+7c^2+5c+35` by grouping?

Answer 1

`(c + 7)(c^2 + 1)`

Explanation:

`f(x) = c^3 + 7c^2 + 5c + 35 =`
`= c^2(c + 7) + (c + 7) = (c + 7)(c^2 + 1)`