2r*2r=4r^2

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Solution for 2r*2r=4r^2 equation: 



2r*2r=4r^2

We move all terms to the left:

2r*2r-(4r^2)=0

determiningTheFunctionDomain
-4r^2+2r*2r=0

Wy multiply elements

-4r^2+4r^2=0

We add all the numbers together, and all the variables

=0

r=0/1

r=0

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