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Simplifying x2 + -2kx + -8 = 0 Reorder the terms: -8 + -2kx + x2 = 0 Solving -8 + -2kx + x2 = 0 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '8' to each side of the equation. -8 + -2kx + 8 + x2 = 0 + 8 Reorder the terms: -8 + 8 + -2kx + x2 = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -2kx + x2 = 0 + 8 -2kx + x2 = 0 + 8 Combine like terms: 0 + 8 = 8 -2kx + x2 = 8 Add '-1x2' to each side of the equation. -2kx + x2 + -1x2 = 8 + -1x2 Combine like terms: x2 + -1x2 = 0 -2kx + 0 = 8 + -1x2 -2kx = 8 + -1x2 Divide each side by '-2x'. k = -4x-1 + 0.5x Simplifying k = -4x-1 + 0.5x
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