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Simplifying (2 + x)(2 + -1x) = 25 Multiply (2 + x) * (2 + -1x) (2(2 + -1x) + x(2 + -1x)) = 25 ((2 * 2 + -1x * 2) + x(2 + -1x)) = 25 ((4 + -2x) + x(2 + -1x)) = 25 (4 + -2x + (2 * x + -1x * x)) = 25 (4 + -2x + (2x + -1x2)) = 25 Combine like terms: -2x + 2x = 0 (4 + 0 + -1x2) = 25 (4 + -1x2) = 25 Solving 4 + -1x2 = 25 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 + -1x2 = 25 + -4 Combine like terms: 4 + -4 = 0 0 + -1x2 = 25 + -4 -1x2 = 25 + -4 Combine like terms: 25 + -4 = 21 -1x2 = 21 Divide each side by '-1'. x2 = -21 Simplifying x2 = -21 Reorder the terms: 21 + x2 = -21 + 21 Combine like terms: -21 + 21 = 0 21 + x2 = 0 The solution to this equation could not be determined.
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