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Simplifying
9x2 + -220 = 0
Reorder the terms:
-220 + 9x2 = 0
Solving
-220 + 9x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '220' to each side of the equation.
-220 + 220 + 9x2 = 0 + 220
Combine like terms: -220 + 220 = 0
0 + 9x2 = 0 + 220
9x2 = 0 + 220
Combine like terms: 0 + 220 = 220
9x2 = 220
Divide each side by '9'.
x2 = 24.44444444
Simplifying
x2 = 24.44444444
Take the square root of each side:
x = {-4.944132324, 4.944132324}
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