Homework Help: Alg. I

Posted by Jane on Tuesday, February 26, 2013 at 2:55pm.

(-5d^-5) (6d^2)
-30d^-3

I know that d^-3 goes on the bottom to make it positive;however,does -30 go on the bottom as well? Please explain the rule(s) for this. Thanks

Alg. I - Steve, Tuesday, February 26, 2013 at 3:03pm
(-5)*(6) = -30

why would you want it to go on the bottom?

(d^-5)(d^2) = d^(-5+2) = d^-3
The negative exponent says it goes on the bottom. The -30 has no exponent; it's just a number. It's just a negative number, not a negative exponent.

To put it on the bottom would be like saying -6 = 1/6 Nope.

So, -30/d^3 is the final answer

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