SOLUTION: Please simplify the following expressions: (-x)^2 (-x)^5= (x/y)^-3= (-3m^3)^2= Thank you.

Algebra ->  Expressions -> SOLUTION: Please simplify the following expressions: (-x)^2 (-x)^5= (x/y)^-3= (-3m^3)^2= Thank you.      Log On


   

Question 1059030: Please simplify the following expressions:
(-x)^2 (-x)^5=
(x/y)^-3=
(-3m^3)^2=
Thank you.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
(-x)^2 (-x)^5=
x^2*-(x^5)=-(x^7). The sign of the first is always positive and the second is negative, so there has to be a negative sign in front of the exponent sum.
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(x/y)^-3=
(y/x)^3 or y^3/x^3
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square each term
9m^6