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