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Simplifying
3x2 + -7 = 2
Reorder the terms:
-7 + 3x2 = 2
Solving
-7 + 3x2 = 2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '7' to each side of the equation.
-7 + 7 + 3x2 = 2 + 7
Combine like terms: -7 + 7 = 0
0 + 3x2 = 2 + 7
3x2 = 2 + 7
Combine like terms: 2 + 7 = 9
3x2 = 9
Divide each side by '3'.
x2 = 3
Simplifying
x2 = 3
Take the square root of each side:
x = {-1.732050808, 1.732050808}
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