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Simplifying
4x2 + -137 = 7
Reorder the terms:
-137 + 4x2 = 7
Solving
-137 + 4x2 = 7
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '137' to each side of the equation.
-137 + 137 + 4x2 = 7 + 137
Combine like terms: -137 + 137 = 0
0 + 4x2 = 7 + 137
4x2 = 7 + 137
Combine like terms: 7 + 137 = 144
4x2 = 144
Divide each side by '4'.
x2 = 36
Simplifying
x2 = 36
Take the square root of each side:
x = {-6, 6}
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