Posted by **Anonymous** on Thursday, January 23, 2014 at 3:50pm.

How to solve d(d^-2)^-9? Please show and explain step-by-step.

- Algebra -
**Leo**, Thursday, January 23, 2014 at 3:51pm
What do you have to **solve** exactly? Do you by chance mean **simplify**?

Should there be an equal sign in the expression that you typed?

- Algebra -
**Anonymous**, Thursday, January 23, 2014 at 3:53pm
Simplify, sorry. The answer says d^19, but I don't get how.

- Algebra -
**Damon**, Thursday, January 23, 2014 at 3:56pm
d^1 * d^(-2*-9)

= d^1 * d^+18

= d^19

- Algebra -
**Anonymous**, Thursday, January 23, 2014 at 4:02pm
Thanks. Another one:

(z^8)^0 z^5

- Algebra -
**Damon**, Thursday, January 23, 2014 at 4:08pm
ANYTHING AT ALL^0 = ONE

so

z^5

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