Question

Can someone check some answers for me?

Answer 1

sure, what kind of problem?

Answer 2

Multyplying powers with the same base.

Answer 3

(x^5y^2) (x^-6y) = xy^2

Answer 4

is it right?

Answer 5

no

Answer 6

oh i typed it wrong. instead of xy^2 its xy^3

Answer 7

no

Answer 8

ugh what? whats the right answer?

Answer 9

is it x^-1y3?

Answer 10

\[x^5y^2(x ^{-6}y)=x ^{5+(-6)}y ^{2+1}=x ^{-1}y^3=\frac{y^3}{x}\]

Answer 11

ooh. ok. can u chek some other ones for me please?

Answer 12

yes

Answer 13

-9m^-2n^5 x 2m^-3n^-6 =-18m^5n

Answer 14

y arent th exponents ngative?

Answer 15

\[-9m ^{-2}n^5(2m ^{-3}n ^{-6})=-18m ^{-2+-3}n ^{5+-6}=-18m ^{-5}n ^{-1}\]

Answer 16

i got that sam answer but it was multiple choice and the exponents were positive.

Answer 17

there might hae been a mistake. ill ask my teacher

Answer 18

It could be written like this:
\[-\frac{18}{m^5n}\]

Answer 19

ohh. ur right. ill check it out and see.

Answer 20

ok

Answer 21

(-2m^3) (3.5m^-3) = -7m^0

Answer 22

???

Answer 23

yes. And m^0 = 1 so the answer is -7