Factor this polynomial expression. x3 - 64
A. (x + 4)(x2 + 4x + 16)
B. (x - 4)(x2 + 4x + 4)
C. (x + 4)(x2 + 4x + 4)
D. (x - 4)(x2 + 4x + 16)
Answers
Answer 1
Answer:
difference of 2 perfect cubes
a^3-b^3=(a-b)(a^2+ab+b^2)
x^3-4^3=(x-4)(x^2+4x+4^2)
(x-4)(x^2+4x+16)
last one is correct
a^3-b^3=(a-b)(a^2+ab+b^2)
x^3-4^3=(x-4)(x^2+4x+4^2)
(x-4)(x^2+4x+16)
last one is correct
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