(r+50)^2=r^2+80^2

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Solution for (r+50)^2=r^2+80^2 equation: 



(r+50)^2=r^2+80^2

We move all terms to the left:

(r+50)^2-(r^2+80^2)=0

We get rid of parentheses

-r^2+(r+50)^2-80^2=0

We add all the numbers together, and all the variables

-1r^2+(r+50)^2-6400=0

We move all terms containing r to the left, all other terms to the right

-1r^2+(r+50)^2=6400

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