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Volgvan
3 years ago
15

Which monomial is a perfect cube? 16x6 27x8 32x12 64x6

Mathematics
2 answers:
Marizza181 [45]3 years ago
7 0

Answer:  The answer is (D) 64x^6.

Step-by-step explanation:  We are to select the correct monomial from the given options which is a perfect cube.

The first option is

y=16x^6=2\times (8x^6)=2\times(2x^2)^3\\\\\Rightarrow \sqrt[3]{y}=2x^2\sqrt[3]{2}.

So, this is not a perfect cube.

The second option is

y=27x^8=x^2\times (27x^6)=x^2\times(3x^2)^3\\\\\Rightarrow \sqrt[3]{y}=3x^2\sqrt[3]{x^2}.

So, this is not a perfect cube.

The third option is

y=32x^{12}=4\times (8x^{12})=4\times(2x^4)^3\\\\\Rightarrow \sqrt[3]{y}=2x^4\sqrt[3]{4}.

So, this is not a perfect cube.

The fourth option is

y=64x^6=(4x^2)^3\\\\\Rightarrow \sqrt[3]{y}=4x^2.

So, this is a perfect cube.

Thus, (D) 64x^6 is the correct option.

Svetlanka [38]3 years ago
5 0
Which monomial is a perfect cube?<span>16x6</span><span>27x8</span><span>32x12</span><span>64x<span>6

Its D </span></span>
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