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Simplifying 2x * -2x + -9 = 0 Reorder the terms for easier multiplication: 2 * -2x * x + -9 = 0 Multiply 2 * -2 -4x * x + -9 = 0 Multiply x * x -4x2 + -9 = 0 Reorder the terms: -9 + -4x2 = 0 Solving -9 + -4x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -4x2 = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -4x2 = 0 + 9 -4x2 = 0 + 9 Combine like terms: 0 + 9 = 9 -4x2 = 9 Divide each side by '-4'. x2 = -2.25 Simplifying x2 = -2.25 Reorder the terms: 2.25 + x2 = -2.25 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 2.25 + x2 = 0.00 The solution to this equation could not be determined.
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