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Simplifying x2 + 16x + 145 = 0 Reorder the terms: 145 + 16x + x2 = 0 Solving 145 + 16x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-145' to each side of the equation. 145 + 16x + -145 + x2 = 0 + -145 Reorder the terms: 145 + -145 + 16x + x2 = 0 + -145 Combine like terms: 145 + -145 = 0 0 + 16x + x2 = 0 + -145 16x + x2 = 0 + -145 Combine like terms: 0 + -145 = -145 16x + x2 = -145 The x term is 16x. Take half its coefficient (8). Square it (64) and add it to both sides. Add '64' to each side of the equation. 16x + 64 + x2 = -145 + 64 Reorder the terms: 64 + 16x + x2 = -145 + 64 Combine like terms: -145 + 64 = -81 64 + 16x + x2 = -81 Factor a perfect square on the left side: (x + 8)(x + 8) = -81 Can't calculate square root of the right side. The solution to this equation could not be determined.
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