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Simplifying (x + -5)(x + -5) + -1(x + -1)(x + -1) = 8 Reorder the terms: (-5 + x)(x + -5) + -1(x + -1)(x + -1) = 8 Reorder the terms: (-5 + x)(-5 + x) + -1(x + -1)(x + -1) = 8 Multiply (-5 + x) * (-5 + x) (-5(-5 + x) + x(-5 + x)) + -1(x + -1)(x + -1) = 8 ((-5 * -5 + x * -5) + x(-5 + x)) + -1(x + -1)(x + -1) = 8 ((25 + -5x) + x(-5 + x)) + -1(x + -1)(x + -1) = 8 (25 + -5x + (-5 * x + x * x)) + -1(x + -1)(x + -1) = 8 (25 + -5x + (-5x + x2)) + -1(x + -1)(x + -1) = 8 Combine like terms: -5x + -5x = -10x (25 + -10x + x2) + -1(x + -1)(x + -1) = 8 Reorder the terms: 25 + -10x + x2 + -1(-1 + x)(x + -1) = 8 Reorder the terms: 25 + -10x + x2 + -1(-1 + x)(-1 + x) = 8 Multiply (-1 + x) * (-1 + x) 25 + -10x + x2 + -1(-1(-1 + x) + x(-1 + x)) = 8 25 + -10x + x2 + -1((-1 * -1 + x * -1) + x(-1 + x)) = 8 25 + -10x + x2 + -1((1 + -1x) + x(-1 + x)) = 8 25 + -10x + x2 + -1(1 + -1x + (-1 * x + x * x)) = 8 25 + -10x + x2 + -1(1 + -1x + (-1x + x2)) = 8 Combine like terms: -1x + -1x = -2x 25 + -10x + x2 + -1(1 + -2x + x2) = 8 25 + -10x + x2 + (1 * -1 + -2x * -1 + x2 * -1) = 8 25 + -10x + x2 + (-1 + 2x + -1x2) = 8 Reorder the terms: 25 + -1 + -10x + 2x + x2 + -1x2 = 8 Combine like terms: 25 + -1 = 24 24 + -10x + 2x + x2 + -1x2 = 8 Combine like terms: -10x + 2x = -8x 24 + -8x + x2 + -1x2 = 8 Combine like terms: x2 + -1x2 = 0 24 + -8x + 0 = 8 24 + -8x = 8 Solving 24 + -8x = 8 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-24' to each side of the equation. 24 + -24 + -8x = 8 + -24 Combine like terms: 24 + -24 = 0 0 + -8x = 8 + -24 -8x = 8 + -24 Combine like terms: 8 + -24 = -16 -8x = -16 Divide each side by '-8'. x = 2 Simplifying x = 2
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