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Simplifying
12x * -20x + 7 = 0
Reorder the terms for easier multiplication:
12 * -20x * x + 7 = 0
Multiply 12 * -20
-240x * x + 7 = 0
Multiply x * x
-240x2 + 7 = 0
Reorder the terms:
7 + -240x2 = 0
Solving
7 + -240x2 = 0
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 + -240x2 = 0 + -7
Combine like terms: 7 + -7 = 0
0 + -240x2 = 0 + -7
-240x2 = 0 + -7
Combine like terms: 0 + -7 = -7
-240x2 = -7
Divide each side by '-240'.
x2 = 0.02916666667
Simplifying
x2 = 0.02916666667
Take the square root of each side:
x = {-0.170782513, 0.170782513}
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