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Simplifying
3x2 + -834 + -138 = 0
Reorder the terms:
-834 + -138 + 3x2 = 0
Combine like terms: -834 + -138 = -972
-972 + 3x2 = 0
Solving
-972 + 3x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '972' to each side of the equation.
-972 + 972 + 3x2 = 0 + 972
Combine like terms: -972 + 972 = 0
0 + 3x2 = 0 + 972
3x2 = 0 + 972
Combine like terms: 0 + 972 = 972
3x2 = 972
Divide each side by '3'.
x2 = 324
Simplifying
x2 = 324
Take the square root of each side:
x = {-18, 18}
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