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Simplifying
7x + -9x2 + -12x + -8x2 + 5x = 0
Reorder the terms:
7x + -12x + 5x + -9x2 + -8x2 = 0
Combine like terms: 7x + -12x = -5x
-5x + 5x + -9x2 + -8x2 = 0
Combine like terms: -5x + 5x = 0
0 + -9x2 + -8x2 = 0
-9x2 + -8x2 = 0
Combine like terms: -9x2 + -8x2 = -17x2
-17x2 = 0
Solving
-17x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '-17'.
x2 = 0
Simplifying
x2 = 0
Take the square root of each side:
x = {0}
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