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Simplifying
-6x2 + -9x2 + 8x2 = 0
Combine like terms: -6x2 + -9x2 = -15x2
-15x2 + 8x2 = 0
Combine like terms: -15x2 + 8x2 = -7x2
-7x2 = 0
Solving
-7x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '-7'.
x2 = 0
Simplifying
x2 = 0
Take the square root of each side:
x = {0}
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