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Simplifying -29x2 + 90x + -81 = 0 Reorder the terms: -81 + 90x + -29x2 = 0 Solving -81 + 90x + -29x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -29 the coefficient of the squared term: Divide each side by '-29'. 2.793103448 + -3.103448276x + x2 = 0 Move the constant term to the right: Add '-2.793103448' to each side of the equation. 2.793103448 + -3.103448276x + -2.793103448 + x2 = 0 + -2.793103448 Reorder the terms: 2.793103448 + -2.793103448 + -3.103448276x + x2 = 0 + -2.793103448 Combine like terms: 2.793103448 + -2.793103448 = 0.000000000 0.000000000 + -3.103448276x + x2 = 0 + -2.793103448 -3.103448276x + x2 = 0 + -2.793103448 Combine like terms: 0 + -2.793103448 = -2.793103448 -3.103448276x + x2 = -2.793103448 The x term is -3.103448276x. Take half its coefficient (-1.551724138). Square it (2.407847800) and add it to both sides. Add '2.407847800' to each side of the equation. -3.103448276x + 2.407847800 + x2 = -2.793103448 + 2.407847800 Reorder the terms: 2.407847800 + -3.103448276x + x2 = -2.793103448 + 2.407847800 Combine like terms: -2.793103448 + 2.407847800 = -0.385255648 2.407847800 + -3.103448276x + x2 = -0.385255648 Factor a perfect square on the left side: (x + -1.551724138)(x + -1.551724138) = -0.385255648 Can't calculate square root of the right side. The solution to this equation could not be determined.
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