4r(-2r)=-8r2

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Solution for 4r(-2r)=-8r2 equation:



4r(-2r)=-8r^2
We move all terms to the left:
4r(-2r)-(-8r^2)=0
We multiply parentheses
-(-8r^2)-8r^2=0
We get rid of parentheses
8r^2-8r^2=0
We add all the numbers together, and all the variables
=0
r=0/1
r=0

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