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Simplifying
3x * 4x + 4 = 125
Reorder the terms for easier multiplication:
3 * 4x * x + 4 = 125
Multiply 3 * 4
12x * x + 4 = 125
Multiply x * x
12x2 + 4 = 125
Reorder the terms:
4 + 12x2 = 125
Solving
4 + 12x2 = 125
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 + 12x2 = 125 + -4
Combine like terms: 4 + -4 = 0
0 + 12x2 = 125 + -4
12x2 = 125 + -4
Combine like terms: 125 + -4 = 121
12x2 = 121
Divide each side by '12'.
x2 = 10.08333333
Simplifying
x2 = 10.08333333
Take the square root of each side:
x = {-3.17542648, 3.17542648}
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