Question

Can someone help understand how to do this equation:


Simplify the expression.

Answer 1

okay,well first, the exponent 2 is distributed down to every term.

Answer 2

Oh Ok. Gotcha

Answer 3

so it'll be \[(3^2xy^{-1})\div(x ^{-1}y)\]

Answer 4

the negative exponents just mean that it should be a fraction with 1 over it. so \[y^{-1} = \frac{ 1 }{ y }\]

Answer 5

ok got it.

Answer 6

in essence, if the negative is exponent is on the top, bring it down to make it positive. if it's on the bottom, bring it up to make it positive.

Answer 7

so what's on top after you move the negatives around and what's on the bottom? \[\frac{ 9x*x }{ y*y }\] (sorry if i'm slow, just made an account)

Answer 8

ok and no prob. so would it be 9x2/y2

Answer 9

yup!

Answer 10

Aight. Awesome thanks for your help

Answer 11

you're welcome :)