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Simplifying (2 + x)(2 + x) = 1 + x2 Multiply (2 + x) * (2 + x) (2(2 + x) + x(2 + x)) = 1 + x2 ((2 * 2 + x * 2) + x(2 + x)) = 1 + x2 ((4 + 2x) + x(2 + x)) = 1 + x2 (4 + 2x + (2 * x + x * x)) = 1 + x2 (4 + 2x + (2x + x2)) = 1 + x2 Combine like terms: 2x + 2x = 4x (4 + 4x + x2) = 1 + x2 Add '-1x2' to each side of the equation. 4 + 4x + x2 + -1x2 = 1 + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 4 + 4x + 0 = 1 + x2 + -1x2 4 + 4x = 1 + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 4 + 4x = 1 + 0 4 + 4x = 1 Solving 4 + 4x = 1 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 4x = 1 + -4 Combine like terms: 4 + -4 = 0 0 + 4x = 1 + -4 4x = 1 + -4 Combine like terms: 1 + -4 = -3 4x = -3 Divide each side by '4'. x = -0.75 Simplifying x = -0.75
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