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Simplifying 9x2 + -16x + 36 = 0 Reorder the terms: 36 + -16x + 9x2 = 0 Solving 36 + -16x + 9x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. 4 + -1.777777778x + x2 = 0 Move the constant term to the right: Add '-4' to each side of the equation. 4 + -1.777777778x + -4 + x2 = 0 + -4 Reorder the terms: 4 + -4 + -1.777777778x + x2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1.777777778x + x2 = 0 + -4 -1.777777778x + x2 = 0 + -4 Combine like terms: 0 + -4 = -4 -1.777777778x + x2 = -4 The x term is -1.777777778x. Take half its coefficient (-0.888888889). Square it (0.7901234570) and add it to both sides. Add '0.7901234570' to each side of the equation. -1.777777778x + 0.7901234570 + x2 = -4 + 0.7901234570 Reorder the terms: 0.7901234570 + -1.777777778x + x2 = -4 + 0.7901234570 Combine like terms: -4 + 0.7901234570 = -3.209876543 0.7901234570 + -1.777777778x + x2 = -3.209876543 Factor a perfect square on the left side: (x + -0.888888889)(x + -0.888888889) = -3.209876543 Can't calculate square root of the right side. The solution to this equation could not be determined.
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