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Simplifying x2 + -8x + 240 = 0 Reorder the terms: 240 + -8x + x2 = 0 Solving 240 + -8x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-240' to each side of the equation. 240 + -8x + -240 + x2 = 0 + -240 Reorder the terms: 240 + -240 + -8x + x2 = 0 + -240 Combine like terms: 240 + -240 = 0 0 + -8x + x2 = 0 + -240 -8x + x2 = 0 + -240 Combine like terms: 0 + -240 = -240 -8x + x2 = -240 The x term is -8x. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8x + 16 + x2 = -240 + 16 Reorder the terms: 16 + -8x + x2 = -240 + 16 Combine like terms: -240 + 16 = -224 16 + -8x + x2 = -224 Factor a perfect square on the left side: (x + -4)(x + -4) = -224 Can't calculate square root of the right side. The solution to this equation could not be determined.
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