Question

What is 64x6 + 27 written as a sum of cubes?

(4x)3 + 33
(4x2)3 + 33
(4x2)3 + 93
(4x3)3 + 33

Answer 1

your answer is...... b :)

Answer 2

To transform the given expression to sum of cubes, calculate first the cube root of the terms. The cube root of the first term, 64x^6 is 4x^2 and that of the second term, 27 is 3.

Thus, the answer to this item is the second choice, (4x^2)^3 + 3^3