Question

Choose the correct simplification of (2xy7)2(y4)3.

2x2y26
2x2y2
4x2y2
4x2y26

Answer 1

what did you get?

Answer 2

the second one... but i don't know if I'm doing it right...

Answer 3

you are not doing it right. what did you do to get that?

Answer 4

I have no idea... i am redoing a assignment... Could you explain how to do these?

Answer 5

take it one step at a time. what is (y^4)^3?

Answer 6

Distribute the power to each factor inside parenthesis.........multiply exponents when you have a power raise to another power

\[= (2^{2}x^{2}y^{7*2})(y^{4*3}) = 4x^{2}y^{14}y^{12} = 4x^{2}y^{14+12} = 4x^{2}y^{26}\]

Answer 7

okay... thanks! :)