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Simplifying kx2 + -2x + -7 = 0 Reorder the terms: -7 + kx2 + -2x = 0 Solving -7 + kx2 + -2x = 0 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '7' to each side of the equation. -7 + kx2 + 7 + -2x = 0 + 7 Reorder the terms: -7 + 7 + kx2 + -2x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + kx2 + -2x = 0 + 7 kx2 + -2x = 0 + 7 Combine like terms: 0 + 7 = 7 kx2 + -2x = 7 Add '2x' to each side of the equation. kx2 + -2x + 2x = 7 + 2x Combine like terms: -2x + 2x = 0 kx2 + 0 = 7 + 2x kx2 = 7 + 2x Divide each side by 'x2'. k = 7x-2 + 2x-1 Simplifying k = 7x-2 + 2x-1
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