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Simplifying
-2x2 + -4x * 3x + 4 = 0
Reorder the terms for easier multiplication:
-2x2 + -4 * 3x * x + 4 = 0
Multiply -4 * 3
-2x2 + -12x * x + 4 = 0
Multiply x * x
-2x2 + -12x2 + 4 = 0
Reorder the terms:
4 + -2x2 + -12x2 = 0
Combine like terms: -2x2 + -12x2 = -14x2
4 + -14x2 = 0
Solving
4 + -14x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4' to each side of the equation.
4 + -4 + -14x2 = 0 + -4
Combine like terms: 4 + -4 = 0
0 + -14x2 = 0 + -4
-14x2 = 0 + -4
Combine like terms: 0 + -4 = -4
-14x2 = -4
Divide each side by '-14'.
x2 = 0.2857142857
Simplifying
x2 = 0.2857142857
Take the square root of each side:
x = {-0.534522484, 0.534522484}
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