(simplify) (algebra) check if correct!!! #8. tell me what i did wrong!!

Mathematics
Tutor: None Selected Time limit: 1 Day

May 18th, 2015

(7*10^3)(8*10^-9)

=(56*10^3)/10^9

=56*10^(3-9)

=56*10^-6

=56/10^6

May 18th, 2015

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May 18th, 2015
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