Question

Which expression has been simplified correctly? Show work.

(-3g)^4=-81g^4

(w^3x^2y^2)(w^2x^3y)=w^5x^5y^3

12y^6
------- = 3y^3
4y^2


(a^3b^5)^2 = a^5b^7

Answer 1

`(-3g)^(4) = (-3)^(4) (g)^(4) =81 g^(4)` . . . . . . . . (first option is not correct)

`(w^3x^2y^2)(w^2x^3y)=w^(3+2)x^(2+3)y^(2+1)=w^5x^5y^3` . . . . . . . . (option 2 is correct)
Simmilarly you can show that the third and fourth options are not correct.