SOLUTION: what is 4x^-7 in fraction form? Or how can you use fractions to prove the following to be true? x^-5*4x^-7=4x^-12

SOLUTION: what is 4x^-7 in fraction form? Or how can you use fractions to prove the following to be true? x^-5*4x^-7=4x^-12

Algebra.Com

Question 794675: what is 4x^-7 in fraction form? Or how can you use fractions to prove the following to be true?
x^-5*4x^-7=4x^-12
Answer by LinnW(1048) (Show Source): You can put this solution on YOUR website!
what is 4x^-7 in fraction form? Or how can you use fractions to prove the following to be true?
=
Since we can multiply in any order the left hand side
can be written as
Notice = and =
So we can safely say =
can be written as
= or

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