0=r^2-243295.2280

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Solution for 0=r^2-243295.2280 equation: 


Simplifying
0 = r2 + -243295.2280

Reorder the terms:
0 = -243295.2280 + r2

Solving
0 = -243295.2280 + 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.
0 + -1r2 = -243295.2280 + r2 + -1r2
Remove the zero:
-1r2 = -243295.2280 + r2 + -1r2

Combine like terms: r2 + -1r2 = 0
-1r2 = -243295.2280 + 0
-1r2 = -243295.2280

Divide each side by '-1'.
r2 = 243295.228

Simplifying
r2 = 243295.228

Take the square root of each side:
r = {-493.249660922, 493.249660922}

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