Question

(9m)^-2

Simplify. Using positive exponents only.


Help please?

Answer 1

9m - 2 is already in simplest form....

Answer 2

well it's actualy (9m)^2

Answer 3

sorry i mean (9m)^-2

Answer 4

its asking me to use postive exponents only. I am confused.

Answer 5

here's a hint \[\huge a^{-m} \implies \frac 1{a^m}\]
does that help?

Answer 6

is it 18m?

Answer 7

i mean 81m

Answer 8

how did you get that?

Answer 9

exponents really confuse me alot

Answer 10

let me give an example \[\huge 2^{-2} \implies \frac 1{2^2} \implies \frac 14\]

Answer 11

do you get it now?

Answer 12

9m*2? am I on the right track?

Answer 13

no...

Answer 14

:(

Answer 15

let me give another example \[\huge (3x)^{-2} \implies \frac 1{(3x)^2} \implies \frac 1{9x^2}\]

Answer 16

would you mind showing me the steps? I am a first year algebra student and have no idea what I am supposed to be doing. Sorry that I am not getting your examples.

Answer 17

like i said before...if you have a negative exponent..just put it in the denominator for example (3x)^(-2)

to make the exponent positive, all you have to do is put it in the denominator like so \[\frac{1}{(3x)^2}\]
follow?

Answer 18

sort of, yes.

Answer 19

so 1/(9m)^2 = 1/9m^2?

Answer 20

no.. you have to square 9 as well

Answer 21

see what i did earlier \[\frac 1{(3x)^2} \implies \frac 1{3^2 x^2} \implies \frac 1{9x^2}\]