How do you evaluate the power #(-1)^3#?

1 Answer
Tony B
Oct 19, 2016

#-1#

Explanation:

Given:#" "(-1)^3" "=" "color(magenta)((-1)xx(-1))color(green)(xx(-1))#

When the signs are the same multiplying gives a plus giving:
#color(magenta)((-1)xx(-1)=(+1))#

When the signs are different multiplying gives a minus giving:
#color(magenta)(+1)color(green)(xx(-1))color(blue)( = -1)#

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