Question

Please check my work will give medal. (attached picture)

Answer 1

when dividing exponents the powers subtract
like x^5 / x^2 = x^3

Answer 2

check them again. remember how exponents work when you divide them. also the reciprocal of a reciprocal it not itself a reciprocal.

Answer 3

can you explain it to me? i understood multiplying but dividing is harder for me /:

Answer 4

dividing is just subtracting the powers
like x^7 / x^4 = x^(7-4) = x^3

so a^6 / a^4 = a^(6-4) = a^2

Answer 5

so for the first one would it be the first answer?

Answer 6

not quite :)
because b^3 / b^2 = b^1 = b (on top)

Answer 7

ohhh right oops so its the last answer?

Answer 8

yep :)

Answer 9

then for the second one
it's a general rule to have no negative exponents in the denominator

Answer 10

thank you (: and would the answer be the third one?

Answer 11

not quite :)
the 4 should remain on top

Answer 12

oh okay so can you turn the negative into a positive? because origanlly my second choice was going to be the second answer but i wasnt sure.

Answer 13

mmm
it's more like
y^0 = 1
so 1/ y^(-3) = y^0 / y^(-3) = y^(0-(-3)) = y^3 on top

Answer 14

So would it be 4y^3 ?

Answer 15

yep :)

Answer 16

thank you! do you mind helping me with two more if its no bother (:

Answer 17

sure! :)

Answer 18

thank you (:

Answer 19

both are correct! :) great job! :D

Answer 20

Really? haha thank you!

Answer 21

glad I could help :)