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Simplifying
3x2 + -363 = 0
Reorder the terms:
-363 + 3x2 = 0
Solving
-363 + 3x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '363' to each side of the equation.
-363 + 363 + 3x2 = 0 + 363
Combine like terms: -363 + 363 = 0
0 + 3x2 = 0 + 363
3x2 = 0 + 363
Combine like terms: 0 + 363 = 363
3x2 = 363
Divide each side by '3'.
x2 = 121
Simplifying
x2 = 121
Take the square root of each side:
x = {-11, 11}
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