Question

30b^4 - 45b^3 - 10b^2 + 15b factor this expression with work please?

Answer 1

`30b^4 - 45b^3 - 10b^2 + 15b \\ \\ GCF = 5b \\ \\ 5b ( (30b^4)/(5b) + (-45b^3)/(5b) + (-10b^2)/(5b) + (15b)/(5b)) \\ \\ 5b(6b^3 - 9b^2 - 2b + 3) \\ \\ 5b(3b^2(2b-3)-(2b-3)) \\ \\ 5b(2b - 3)(3b^2 - 1) \\ \\`

The final result is: 5b(2b - 3)(2b² - 1).