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Simplifying kx2 + -3x + 9 = 0 Reorder the terms: 9 + kx2 + -3x = 0 Solving 9 + kx2 + -3x = 0 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + kx2 + -9 + -3x = 0 + -9 Reorder the terms: 9 + -9 + kx2 + -3x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + kx2 + -3x = 0 + -9 kx2 + -3x = 0 + -9 Combine like terms: 0 + -9 = -9 kx2 + -3x = -9 Add '3x' to each side of the equation. kx2 + -3x + 3x = -9 + 3x Combine like terms: -3x + 3x = 0 kx2 + 0 = -9 + 3x kx2 = -9 + 3x Divide each side by 'x2'. k = -9x-2 + 3x-1 Simplifying k = -9x-2 + 3x-1
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