Which are perfect cubes? Check all that apply

64

x^16

8x^3

27x^4

81x^6

125x^9

Question

Mathematics

Valeria Tucker

4 August, 10:55

Which are perfect cubes? Check all that apply

64

x^16

8x^3

27x^4

81x^6

125x^9

+4

Answers (1)

Know the Answer?

Gibbs · Answer 1

A perfect cube is a number that resulted from multiplying a number three times by itself. A perfect cube is also a number that has an exact cube root.

8x^3 ⇒ 2x^4 * 2x^4 * 2x^4

27x^4 ⇒ 3x³ * 3x³ * 3x³

Only two monomials are perfect cubes.

Which are perfect cubes? Check all that apply64x^168x^327x^481x^6125x^9

Which are perfect cubes? Check all that apply

64

x^16

8x^3

27x^4

81x^6

125x^9