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Simplifying 9x * 9x + -65x + 14 = 0 Reorder the terms for easier multiplication: 9 * 9x * x + -65x + 14 = 0 Multiply 9 * 9 81x * x + -65x + 14 = 0 Multiply x * x 81x2 + -65x + 14 = 0 Reorder the terms: 14 + -65x + 81x2 = 0 Solving 14 + -65x + 81x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 81 the coefficient of the squared term: Divide each side by '81'. 0.1728395062 + -0.8024691358x + x2 = 0 Move the constant term to the right: Add '-0.1728395062' to each side of the equation. 0.1728395062 + -0.8024691358x + -0.1728395062 + x2 = 0 + -0.1728395062 Reorder the terms: 0.1728395062 + -0.1728395062 + -0.8024691358x + x2 = 0 + -0.1728395062 Combine like terms: 0.1728395062 + -0.1728395062 = 0.0000000000 0.0000000000 + -0.8024691358x + x2 = 0 + -0.1728395062 -0.8024691358x + x2 = 0 + -0.1728395062 Combine like terms: 0 + -0.1728395062 = -0.1728395062 -0.8024691358x + x2 = -0.1728395062 The x term is -0.8024691358x. Take half its coefficient (-0.4012345679). Square it (0.1609891785) and add it to both sides. Add '0.1609891785' to each side of the equation. -0.8024691358x + 0.1609891785 + x2 = -0.1728395062 + 0.1609891785 Reorder the terms: 0.1609891785 + -0.8024691358x + x2 = -0.1728395062 + 0.1609891785 Combine like terms: -0.1728395062 + 0.1609891785 = -0.0118503277 0.1609891785 + -0.8024691358x + x2 = -0.0118503277 Factor a perfect square on the left side: (x + -0.4012345679)(x + -0.4012345679) = -0.0118503277 Can't calculate square root of the right side. The solution to this equation could not be determined.
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