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Simplifying
3x2 + -7 + 5 = 0
Reorder the terms:
-7 + 5 + 3x2 = 0
Combine like terms: -7 + 5 = -2
-2 + 3x2 = 0
Solving
-2 + 3x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '2' to each side of the equation.
-2 + 2 + 3x2 = 0 + 2
Combine like terms: -2 + 2 = 0
0 + 3x2 = 0 + 2
3x2 = 0 + 2
Combine like terms: 0 + 2 = 2
3x2 = 2
Divide each side by '3'.
x2 = 0.6666666667
Simplifying
x2 = 0.6666666667
Take the square root of each side:
x = {-0.816496581, 0.816496581}
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