Question

Simplify.

(-3ab 3)4

Answer 1

`(-3ab^3)^4 = (-3)^4 \cdot a^4 \cdot (b^3)^4=81a^4b^(12)`
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`(-a)^4=a^4`

and

`y^9 : y^3 = y^(9-3)=y^6 \\\\ n^(12):n^4 = n^(12-4)=n^8`