Question

Which of the following represents the factored form of f(x) = x3 − 64x?

f(x) = x(x + 8)(x − 8)
f(x) = (x − 8)(x + 8)
f(x) = x(x − 8)2
f(x) = x(x2 − 8)

Answer 1

find the GCF 1st
wha is the common factor ?

Answer 2

\[\huge\rm x^3-64x\] what is common in thes both terms ?

Answer 3

Well
The factors of 64 are:
1, 2, 4, 8, 16, 32, 64

Answer 4

both terms 64 isn't common in first term