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Simplifying
408.0744 = r2
Solving
408.0744 = r2
Solving for variable 'r'.
Move all terms containing r to the left, all other terms to the right.
Add '-1r2' to each side of the equation.
408.0744 + -1r2 = r2 + -1r2
Combine like terms: r2 + -1r2 = 0
408.0744 + -1r2 = 0
Add '-408.0744' to each side of the equation.
408.0744 + -408.0744 + -1r2 = 0 + -408.0744
Combine like terms: 408.0744 + -408.0744 = 0.0000
0.0000 + -1r2 = 0 + -408.0744
-1r2 = 0 + -408.0744
Combine like terms: 0 + -408.0744 = -408.0744
-1r2 = -408.0744
Divide each side by '-1'.
r2 = 408.0744
Simplifying
r2 = 408.0744
Take the square root of each side:
r = {-20.200851467, 20.200851467}
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