Factor -35b+15b^4
To factor -35b+15b^4, we first notice that both terms have a common factor of b. We can factor out b from both terms to obtain:
b(-35+15b^3)
Next, we look for any further common factors between the terms inside the parentheses. In this case, we see that both terms have a common factor of 5. We can factor out 5 from the terms inside the parentheses:
b(5(-7+3b^3))
So the factored form of -35b+15b^4 is b(5(-7+3b^3))