The expression x3 – 64 can be written as (x)3 – (4)3. what is the factorization of x3 – 64? a3 – b3 = (a – b)(a2 ab b2) (x – 4)(x2 4x 8) (x – 4)(x2 4x 16) (x – 64)(x2 64x 16) (x – 64)(x2 64x 4,096)