Simplify the following:

Question

1) 32^1.2

2) (-216)^(-2/3)

3) -(-27)^(-4/3)

Note: 32^1.2 is 32 raised to the 1.2 power

Answer 1

1. 32=2^5
32^1.2=(2^5)^1.2=2^10

2. -216=-2*108=-2*2*54=-2*2*2*27=
=-2^3 *3^3

((-6)^3)^-2/3= Now the sign is tricky.

The cube root of a negative number is negative.

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