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Simplifying (k + -3) * x2 + -2x + -4 = 0 Reorder the terms: (-3 + k) * x2 + -2x + -4 = 0 Reorder the terms for easier multiplication: x2(-3 + k) + -2x + -4 = 0 (-3 * x2 + k * x2) + -2x + -4 = 0 Reorder the terms: (kx2 + -3x2) + -2x + -4 = 0 (kx2 + -3x2) + -2x + -4 = 0 Reorder the terms: -4 + kx2 + -2x + -3x2 = 0 Solving -4 + kx2 + -2x + -3x2 = 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 + kx2 + -2x + 4 + -3x2 = 0 + 4 Reorder the terms: -4 + 4 + kx2 + -2x + -3x2 = 0 + 4 Combine like terms: -4 + 4 = 0 0 + kx2 + -2x + -3x2 = 0 + 4 kx2 + -2x + -3x2 = 0 + 4 Combine like terms: 0 + 4 = 4 kx2 + -2x + -3x2 = 4 Add '2x' to each side of the equation. kx2 + -2x + 2x + -3x2 = 4 + 2x Combine like terms: -2x + 2x = 0 kx2 + 0 + -3x2 = 4 + 2x kx2 + -3x2 = 4 + 2x Add '3x2' to each side of the equation. kx2 + -3x2 + 3x2 = 4 + 2x + 3x2 Combine like terms: -3x2 + 3x2 = 0 kx2 + 0 = 4 + 2x + 3x2 kx2 = 4 + 2x + 3x2 Divide each side by 'x2'. k = 4x-2 + 2x-1 + 3 Simplifying k = 4x-2 + 2x-1 + 3 Reorder the terms: k = 3 + 4x-2 + 2x-1
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