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Simplifying
28 + -8x2 = 0
Solving
28 + -8x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-28' to each side of the equation.
28 + -28 + -8x2 = 0 + -28
Combine like terms: 28 + -28 = 0
0 + -8x2 = 0 + -28
-8x2 = 0 + -28
Combine like terms: 0 + -28 = -28
-8x2 = -28
Divide each side by '-8'.
x2 = 3.5
Simplifying
x2 = 3.5
Take the square root of each side:
x = {-1.870828693, 1.870828693}
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