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Simplifying 12x + -1x2 = 75 Solving 12x + -1x2 = 75 Solving for variable 'x'. Reorder the terms: -75 + 12x + -1x2 = 75 + -75 Combine like terms: 75 + -75 = 0 -75 + 12x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 75 + -12x + x2 = 0 Move the constant term to the right: Add '-75' to each side of the equation. 75 + -12x + -75 + x2 = 0 + -75 Reorder the terms: 75 + -75 + -12x + x2 = 0 + -75 Combine like terms: 75 + -75 = 0 0 + -12x + x2 = 0 + -75 -12x + x2 = 0 + -75 Combine like terms: 0 + -75 = -75 -12x + x2 = -75 The x term is -12x. Take half its coefficient (-6). Square it (36) and add it to both sides. Add '36' to each side of the equation. -12x + 36 + x2 = -75 + 36 Reorder the terms: 36 + -12x + x2 = -75 + 36 Combine like terms: -75 + 36 = -39 36 + -12x + x2 = -39 Factor a perfect square on the left side: (x + -6)(x + -6) = -39 Can't calculate square root of the right side. The solution to this equation could not be determined.
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