zapataryan062 zapataryan062

13-06-2022
Mathematics

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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 8x21y8 64x64y64 125x9y20 216x9y18 class=

Respuesta :

loneguy loneguy

13-06-2022

Answer:

[tex]-216x^9y^{18}[/tex]

Step-by-step explanation:

[tex]~~-216 x^9 y^{18}\\\\=(-6)^3 (x^3)^3 (y^6)^3\\\\=(-6x^3 y^6)^3[/tex]

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