Question

15a^3+25a^2-60a

Answer 1

do you want to get value of a?

Answer 2

if you want to find the value of a.

15a^3+25a^2-60a

then take common 5a.

5a(3a^2 +5a - 12)

5a(3a^2 + 9a - 4a -12)

5a(3a(a + 3) - 4(a+3))

5a(3a-4)(a+3)

Answer 3

@cal360superman