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)

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.