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Simplifying (x + 5)(x + 5) = -20 Reorder the terms: (5 + x)(x + 5) = -20 Reorder the terms: (5 + x)(5 + x) = -20 Multiply (5 + x) * (5 + x) (5(5 + x) + x(5 + x)) = -20 ((5 * 5 + x * 5) + x(5 + x)) = -20 ((25 + 5x) + x(5 + x)) = -20 (25 + 5x + (5 * x + x * x)) = -20 (25 + 5x + (5x + x2)) = -20 Combine like terms: 5x + 5x = 10x (25 + 10x + x2) = -20 Solving 25 + 10x + x2 = -20 Solving for variable 'x'. Reorder the terms: 25 + 20 + 10x + x2 = -20 + 20 Combine like terms: 25 + 20 = 45 45 + 10x + x2 = -20 + 20 Combine like terms: -20 + 20 = 0 45 + 10x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-45' to each side of the equation. 45 + 10x + -45 + x2 = 0 + -45 Reorder the terms: 45 + -45 + 10x + x2 = 0 + -45 Combine like terms: 45 + -45 = 0 0 + 10x + x2 = 0 + -45 10x + x2 = 0 + -45 Combine like terms: 0 + -45 = -45 10x + x2 = -45 The x term is 10x. Take half its coefficient (5). Square it (25) and add it to both sides. Add '25' to each side of the equation. 10x + 25 + x2 = -45 + 25 Reorder the terms: 25 + 10x + x2 = -45 + 25 Combine like terms: -45 + 25 = -20 25 + 10x + x2 = -20 Factor a perfect square on the left side: (x + 5)(x + 5) = -20 Can't calculate square root of the right side. The solution to this equation could not be determined.
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