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Simplifying
20 + -8x2 = 0
Solving
20 + -8x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-20' to each side of the equation.
20 + -20 + -8x2 = 0 + -20
Combine like terms: 20 + -20 = 0
0 + -8x2 = 0 + -20
-8x2 = 0 + -20
Combine like terms: 0 + -20 = -20
-8x2 = -20
Divide each side by '-8'.
x2 = 2.5
Simplifying
x2 = 2.5
Take the square root of each side:
x = {-1.58113883, 1.58113883}
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