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Simplifying mx2 + 12x + 9 = 0 Reorder the terms: 9 + mx2 + 12x = 0 Solving 9 + mx2 + 12x = 0 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + mx2 + -9 + 12x = 0 + -9 Reorder the terms: 9 + -9 + mx2 + 12x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + mx2 + 12x = 0 + -9 mx2 + 12x = 0 + -9 Combine like terms: 0 + -9 = -9 mx2 + 12x = -9 Add '-12x' to each side of the equation. mx2 + 12x + -12x = -9 + -12x Combine like terms: 12x + -12x = 0 mx2 + 0 = -9 + -12x mx2 = -9 + -12x Divide each side by 'x2'. m = -9x-2 + -12x-1 Simplifying m = -9x-2 + -12x-1
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