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Simplifying 2x2 + xk + 5 = 0 Reorder the terms: 5 + kx + 2x2 = 0 Solving 5 + kx + 2x2 = 0 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + kx + -5 + 2x2 = 0 + -5 Reorder the terms: 5 + -5 + kx + 2x2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + kx + 2x2 = 0 + -5 kx + 2x2 = 0 + -5 Combine like terms: 0 + -5 = -5 kx + 2x2 = -5 Add '-2x2' to each side of the equation. kx + 2x2 + -2x2 = -5 + -2x2 Combine like terms: 2x2 + -2x2 = 0 kx + 0 = -5 + -2x2 kx = -5 + -2x2 Divide each side by 'x'. k = -5x-1 + -2x Simplifying k = -5x-1 + -2x
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