How do you simplify #(-3)^3 - (-4)^2 - (-12 + 7)#?
1 Answer
Aug 2, 2016
Explanation:
The first step is to evaluate the Parenthesis. That is calculate the parts in brackets.
#(color(red)(-3))^3=(color(red)(-3)xxcolor(red)(-3)xxcolor(red)(-3))=color(red)(-27)#
#(color(blue)(-4))^2=(color(blue)(-4)xxcolor(blue)(-4))=color(blue)(16)#
#(color(magenta)(-12+7))=color(magenta)(-5)# Now place these values into the expression and evaluate from left to right.
#rArrcolor(red)(-27)-color(blue)(16)-(color(magenta)(-5))#
#=-27-16+5=-43+5=-38#