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nashty
For numbers 9 and 10, we are dealing with negative exponents.

The rule of exponents states that any quantity b, taken to the power -n, equals the reciprocal of b, taken to the nth power.

Example: x⁻³ = 1 / x³

Number 9: ( 3 / y² ) ⁻³ 

Step 1: take the reciprocal:

( 3 / y² ) ⁻³ = ( y² / 3 ) ³

Step 2: distribute the exponent

( y² / 3 ) ³ = y⁶ / 27

Try to do number 10 on your own. If you have any questions, comment.


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