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Simplifying x2 + -1kx + -4 = 0 Reorder the terms: -4 + -1kx + x2 = 0 Solving -4 + -1kx + x2 = 0 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '4' to each side of the equation. -4 + -1kx + 4 + x2 = 0 + 4 Reorder the terms: -4 + 4 + -1kx + x2 = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1kx + x2 = 0 + 4 -1kx + x2 = 0 + 4 Combine like terms: 0 + 4 = 4 -1kx + x2 = 4 Add '-1x2' to each side of the equation. -1kx + x2 + -1x2 = 4 + -1x2 Combine like terms: x2 + -1x2 = 0 -1kx + 0 = 4 + -1x2 -1kx = 4 + -1x2 Divide each side by '-1x'. k = -4x-1 + x Simplifying k = -4x-1 + x
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