Question

Find the simplified form of each expression.

1.(4/7y^5)^2
A.8/14y^10
B.16/49y^25
C.16/49y^10
D.8/14y^25

2.(x/2y^5)^-2
A.x^2/4y^10
B.4y^25/x^2
C.4y^10/x^2
D.x^2/4y^25

I think #1 is A and #2 is A

Please correct me if I'm wrong.

Answer 1

Two strikes

(4/7y^5)^2
= (4/7y^5)(4/7y^5)
= (16/49) y^10

(x/2y^5)^-2
= (2y^5/x)^2
= 4 y^10 / x^2

Answer 2

anyone got full test answers