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Simplifying
168 = x2 + 18 + 80
Reorder the terms:
168 = 18 + 80 + x2
Combine like terms: 18 + 80 = 98
168 = 98 + x2
Solving
168 = 98 + x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-1x2' to each side of the equation.
168 + -1x2 = 98 + x2 + -1x2
Combine like terms: x2 + -1x2 = 0
168 + -1x2 = 98 + 0
168 + -1x2 = 98
Add '-168' to each side of the equation.
168 + -168 + -1x2 = 98 + -168
Combine like terms: 168 + -168 = 0
0 + -1x2 = 98 + -168
-1x2 = 98 + -168
Combine like terms: 98 + -168 = -70
-1x2 = -70
Divide each side by '-1'.
x2 = 70
Simplifying
x2 = 70
Take the square root of each side:
x = {-8.366600265, 8.366600265}
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