Question

find the equivalent expression using the same bases. (21x28)^2 explain.

Answer 1

@Data_LG2

Answer 2

is that 21 times 28?

Answer 3

i tried solving it but you dont multiply?

Answer 4

its suppose to be something like the product rule or quotient rule idk

Answer 5

have you tried multiplying 21 and 28 then applying the exponent on the product?

Answer 6

yeah and it said express your answer in terms of 21 and 28 only

Answer 7

oh you just have to distribute the exponents.
like for example (3 x 4)^2 = 3^2 x 4^2
so if you'll apply it to your problem, that would be?

Answer 8

hmm i think let me try the example said a^m x a^n=a ^m+n or a^m/a^n= a^m-n or i think yeah this one (a x b)^n= a^nxb^n yeah this is the step for it

Answer 9

yes, so your answer will be.............?

Answer 10

euh let me solve it first and then see if its right

Answer 11

so i set it up like 21x28^2= 21^2x28^2 so that would equal 588^4 idk i messed up i think

Answer 12

\(21\times 28^2= 21^2 \times 28^2\) is right. I think this is enough you dont have to evaluate it because they are asking only "in terms of 28 and 21"

Answer 13

ohh right , i always end up solving lol that wasnt that hard, maybe my brain is finally understanding lol

Answer 14

what about 39 x 96^8 cause it doesnt have two exponents and when i add them its number is way too big hmm...

Answer 15

oh nvm i got it :)

Answer 16

still need any help?

sorry i was away again lol

Answer 17

ill tag you in my new question lol and its fine :)