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Simplifying 9x2 + 7x + 222 = 0 Reorder the terms: 222 + 7x + 9x2 = 0 Solving 222 + 7x + 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'. 24.66666667 + 0.7777777778x + x2 = 0 Move the constant term to the right: Add '-24.66666667' to each side of the equation. 24.66666667 + 0.7777777778x + -24.66666667 + x2 = 0 + -24.66666667 Reorder the terms: 24.66666667 + -24.66666667 + 0.7777777778x + x2 = 0 + -24.66666667 Combine like terms: 24.66666667 + -24.66666667 = 0.00000000 0.00000000 + 0.7777777778x + x2 = 0 + -24.66666667 0.7777777778x + x2 = 0 + -24.66666667 Combine like terms: 0 + -24.66666667 = -24.66666667 0.7777777778x + x2 = -24.66666667 The x term is 0.7777777778x. Take half its coefficient (0.3888888889). Square it (0.1512345679) and add it to both sides. Add '0.1512345679' to each side of the equation. 0.7777777778x + 0.1512345679 + x2 = -24.66666667 + 0.1512345679 Reorder the terms: 0.1512345679 + 0.7777777778x + x2 = -24.66666667 + 0.1512345679 Combine like terms: -24.66666667 + 0.1512345679 = -24.5154321021 0.1512345679 + 0.7777777778x + x2 = -24.5154321021 Factor a perfect square on the left side: (x + 0.3888888889)(x + 0.3888888889) = -24.5154321021 Can't calculate square root of the right side. The solution to this equation could not be determined.
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