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Simplifying
3x2 + 9 = 201
Reorder the terms:
9 + 3x2 = 201
Solving
9 + 3x2 = 201
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-9' to each side of the equation.
9 + -9 + 3x2 = 201 + -9
Combine like terms: 9 + -9 = 0
0 + 3x2 = 201 + -9
3x2 = 201 + -9
Combine like terms: 201 + -9 = 192
3x2 = 192
Divide each side by '3'.
x2 = 64
Simplifying
x2 = 64
Take the square root of each side:
x = {-8, 8}
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