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22 April, 11:17

Which are perfect cubes? Check all that apply

64

x^16

8x^3

27x^4

81x^6

125x^9

+2
Answers (1)
  1. 22 April, 11:33
    0
    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.
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