Question

factor:64x^3+125

Answer 1

(a^3+b^3)=(a+b)(a^2-ab+b^3)

Answer 2

how is that factored? THat does not give the answer.

Answer 3

64x^3 = (4x)^3
125 = 5^3
I'm sure you can do the rest yourself

Answer 4

i do not get how to do it thats why im asking

Answer 5

Let
a = 4x
b = 5

Answer 6

would it be (4x-5)(x2-5x+25)?

Answer 7

a^2 = (4x)^2 = 16x^2 (a isn't on the x term, it is 4x)
ab = 20x
b^2= 25 (just noticed theres a typo, it is (a+b)(a^2-ab+b^2))

Therefore it is actually (4x+5)(16x^2-20x+25)

Answer 8

Edit: (a isn't only the x term, it is 4x)