How do you simplify (-32)^(-3/5)(32)35?

1 Answer
Oct 13, 2016

= 1/(-8)=18

Explanation:

There are two laws of indices in place here.

x^-m = 1/x^m" and "x^(p/q) = (rootq(x))^pxm=1xm and xpq=(qx)p

Use the sign law first to make the index positive.

1/((-32)^(3/5)1(32)35

Change the index to a root and a power:

=1/color(red)(root5((-32)))^(3)" "larr=15(32)3 find 5th root of -32

= 1/((-2)^3)" "larr=1(2)3 find the cube of -2

= 1/(-8)=18