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Simplifying x2 + 10x + 87 = 0 Reorder the terms: 87 + 10x + x2 = 0 Solving 87 + 10x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-87' to each side of the equation. 87 + 10x + -87 + x2 = 0 + -87 Reorder the terms: 87 + -87 + 10x + x2 = 0 + -87 Combine like terms: 87 + -87 = 0 0 + 10x + x2 = 0 + -87 10x + x2 = 0 + -87 Combine like terms: 0 + -87 = -87 10x + x2 = -87 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 = -87 + 25 Reorder the terms: 25 + 10x + x2 = -87 + 25 Combine like terms: -87 + 25 = -62 25 + 10x + x2 = -62 Factor a perfect square on the left side: (x + 5)(x + 5) = -62 Can't calculate square root of the right side. The solution to this equation could not be determined.
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