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Which expression is a perfect cube? -8x^21y^8 -64x^64y^64 -125x^9y^20 -216x^9y^18

Which expression is a perfect cube? -8x^21y^8 -64x^64y^64 -125x^9y^20 -216x^9y^18
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25 votes
Which expression is a perfect cube?

-8x^21y^8
-64x^64y^64
-125x^9y^20
-216x^9y^18

Which expression is a perfect cube? -8x^21y^8 -64x^64y^64 -125x^9y^20 -216x^9y^18-example-1
asked
User Vishnu Kanwar
by
8.3k points

1 Answer

10 votes

Answer:


-216x^9y^(18)

Explanation:


~~-216 x^9 y^(18)\\\\=(-6)^3 (x^3)^3 (y^6)^3\\\\=(-6x^3 y^6)^3

answered
User Daniel Barden
by
8.3k points
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