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Simplifying
12 + x(5 + -1x) + -5x = 0
12 + (5 * x + -1x * x) + -5x = 0
12 + (5x + -1x2) + -5x = 0
Reorder the terms:
12 + 5x + -5x + -1x2 = 0
Combine like terms: 5x + -5x = 0
12 + 0 + -1x2 = 0
12 + -1x2 = 0
Solving
12 + -1x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-12' to each side of the equation.
12 + -12 + -1x2 = 0 + -12
Combine like terms: 12 + -12 = 0
0 + -1x2 = 0 + -12
-1x2 = 0 + -12
Combine like terms: 0 + -12 = -12
-1x2 = -12
Divide each side by '-1'.
x2 = 12
Simplifying
x2 = 12
Take the square root of each side:
x = {-3.464101615, 3.464101615}
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