Solve for x
x=64\sqrt{5}-20\approx 123.10835056
x=-64\sqrt{5}-20\approx -163.10835056
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x+20=64\sqrt{5} x+20=-64\sqrt{5}
Take the square root of both sides of the equation.
x+20-20=64\sqrt{5}-20 x+20-20=-64\sqrt{5}-20
Subtract 20 from both sides of the equation.
x=64\sqrt{5}-20 x=-64\sqrt{5}-20
Subtracting 20 from itself leaves 0.
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