Question

simplify 12x3/12x7

Answer 1

first what is 12/ 12 ?

Answer 2

1

Answer 3

right now lets deal with the terms in x
these are x^3 and x^7

do you know the law of indices when dividing?

Answer 4

no sir.

Answer 5

x^4 / x^2 = x^(4-2) = x^2

Answer 6

my guess (but with good reason) is 1 / 12x4

Answer 7

you subtract the indices (exponents is another word for them)

Answer 8

Ah.

Answer 9

well your x^4 is correct because x^7 / x^3 = x^(7-3) = x^4

Answer 10

ok

Answer 11

thanks

Answer 12

but we dealt with the numbers earlier on 12/12 = 1 the 12's disappear

Answer 13

right

Answer 14

so the final answer is 1 / x^4

Answer 15

do you understand ?

Answer 16

thanks bro. it was a multiple choice with the choces being 12x4, 1/12x4, 1/12x-4

Answer 17

well its none of those