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Simplifying 0 = x2 + -8x + 130 Reorder the terms: 0 = 130 + -8x + x2 Solving 0 = 130 + -8x + x2 Solving for variable 'x'. Combine like terms: 0 + -130 = -130 -130 + 8x + -1x2 = 130 + -8x + x2 + -130 + 8x + -1x2 Reorder the terms: -130 + 8x + -1x2 = 130 + -130 + -8x + 8x + x2 + -1x2 Combine like terms: 130 + -130 = 0 -130 + 8x + -1x2 = 0 + -8x + 8x + x2 + -1x2 -130 + 8x + -1x2 = -8x + 8x + x2 + -1x2 Combine like terms: -8x + 8x = 0 -130 + 8x + -1x2 = 0 + x2 + -1x2 -130 + 8x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -130 + 8x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 130 + -8x + x2 = 0 Move the constant term to the right: Add '-130' to each side of the equation. 130 + -8x + -130 + x2 = 0 + -130 Reorder the terms: 130 + -130 + -8x + x2 = 0 + -130 Combine like terms: 130 + -130 = 0 0 + -8x + x2 = 0 + -130 -8x + x2 = 0 + -130 Combine like terms: 0 + -130 = -130 -8x + x2 = -130 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 = -130 + 16 Reorder the terms: 16 + -8x + x2 = -130 + 16 Combine like terms: -130 + 16 = -114 16 + -8x + x2 = -114 Factor a perfect square on the left side: (x + -4)(x + -4) = -114 Can't calculate square root of the right side. The solution to this equation could not be determined.
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