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Simplifying
9x2 + 6x2 + -8 = 0
Reorder the terms:
-8 + 9x2 + 6x2 = 0
Combine like terms: 9x2 + 6x2 = 15x2
-8 + 15x2 = 0
Solving
-8 + 15x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '8' to each side of the equation.
-8 + 8 + 15x2 = 0 + 8
Combine like terms: -8 + 8 = 0
0 + 15x2 = 0 + 8
15x2 = 0 + 8
Combine like terms: 0 + 8 = 8
15x2 = 8
Divide each side by '15'.
x2 = 0.5333333333
Simplifying
x2 = 0.5333333333
Take the square root of each side:
x = {-0.730296743, 0.730296743}
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