Posted by **Amy** on Sunday, November 14, 2010 at 2:33pm.

(b^(-4y+7))(b^y) / b

I got 1 / b^(3y-8)

but the answer is supposed to be 1 / b^(3y+6) ?

could someone write the steps to solving this?

- Algebra: exponents -
**Amy**, Sunday, November 14, 2010 at 2:36pm
I just solved it and i know how to get 1 / b^(3y+6) as the answer

but, if for the exponent -4y+7 if it isn't -(4y+7) I wouldn't move it to the bottom of a fraction?

- Algebra: exponents -
**Amy**, Sunday, November 14, 2010 at 2:36pm
by answer I meant b^-3y+6

- Algebra: exponents -
**bobpursley**, Sunday, November 14, 2010 at 2:46pm
You may put the exponents in the numerator or denominator.

a^{3}= 1/a^{-3}

sometimes teachers have beginning students move them around just for practice.

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