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Simplifying 4x2 + -1kx + 25 = 0 Reorder the terms: 25 + -1kx + 4x2 = 0 Solving 25 + -1kx + 4x2 = 0 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-25' to each side of the equation. 25 + -1kx + -25 + 4x2 = 0 + -25 Reorder the terms: 25 + -25 + -1kx + 4x2 = 0 + -25 Combine like terms: 25 + -25 = 0 0 + -1kx + 4x2 = 0 + -25 -1kx + 4x2 = 0 + -25 Combine like terms: 0 + -25 = -25 -1kx + 4x2 = -25 Add '-4x2' to each side of the equation. -1kx + 4x2 + -4x2 = -25 + -4x2 Combine like terms: 4x2 + -4x2 = 0 -1kx + 0 = -25 + -4x2 -1kx = -25 + -4x2 Divide each side by '-1x'. k = 25x-1 + 4x Simplifying k = 25x-1 + 4x
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