# Algebra

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

• Algebra -

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 -

Simplify, sorry. The answer says d^19, but I don't get how.

• Algebra -

d^1 * d^(-2*-9)

= d^1 * d^+18

= d^19

• Algebra -

Thanks. Another one:

(z^8)^0 z^5

• Algebra -

ANYTHING AT ALL^0 = ONE
so
z^5

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