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Simplifying 9x2 + -6x + 145 = 0 Reorder the terms: 145 + -6x + 9x2 = 0 Solving 145 + -6x + 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'. 16.11111111 + -0.6666666667x + x2 = 0 Move the constant term to the right: Add '-16.11111111' to each side of the equation. 16.11111111 + -0.6666666667x + -16.11111111 + x2 = 0 + -16.11111111 Reorder the terms: 16.11111111 + -16.11111111 + -0.6666666667x + x2 = 0 + -16.11111111 Combine like terms: 16.11111111 + -16.11111111 = 0.00000000 0.00000000 + -0.6666666667x + x2 = 0 + -16.11111111 -0.6666666667x + x2 = 0 + -16.11111111 Combine like terms: 0 + -16.11111111 = -16.11111111 -0.6666666667x + x2 = -16.11111111 The x term is -0.6666666667x. Take half its coefficient (-0.3333333334). Square it (0.1111111112) and add it to both sides. Add '0.1111111112' to each side of the equation. -0.6666666667x + 0.1111111112 + x2 = -16.11111111 + 0.1111111112 Reorder the terms: 0.1111111112 + -0.6666666667x + x2 = -16.11111111 + 0.1111111112 Combine like terms: -16.11111111 + 0.1111111112 = -15.9999999988 0.1111111112 + -0.6666666667x + x2 = -15.9999999988 Factor a perfect square on the left side: (x + -0.3333333334)(x + -0.3333333334) = -15.9999999988 Can't calculate square root of the right side. The solution to this equation could not be determined.
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