glittergurl0101 glittergurl0101

11-03-2015
Mathematics

Answered

Simplify:

(3y)^4 (times) y^-2

A) 1/2y^2
B) 3y^2
C) 1/81 y^2
D) 81 y^2

Answer :

konrad509 konrad509

11-03-2015

[tex](3y)^4\cdot y^{-2}=81y^4\cdot y^{-2}=81y^{2}[/tex]

Answer Link

Panoyin Panoyin

11-03-2015

[tex](3y)^{4} * y^{-2}[/tex]

[tex]((3y)(3y)(3y)(3y)) * \frac{1}{y^{2}}[/tex]

[tex]81y^{4} * \frac{1}{y^{2}}[/tex]

[tex]81y^{2}[/tex]

D. 81y²

Answer Link

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