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Simplifying (2x2 + x + 1) + (x2 + -3x + 2) = 0 Reorder the terms: (1 + x + 2x2) + (x2 + -3x + 2) = 0 Remove parenthesis around (1 + x + 2x2) 1 + x + 2x2 + (x2 + -3x + 2) = 0 Reorder the terms: 1 + x + 2x2 + (2 + -3x + x2) = 0 Remove parenthesis around (2 + -3x + x2) 1 + x + 2x2 + 2 + -3x + x2 = 0 Reorder the terms: 1 + 2 + x + -3x + 2x2 + x2 = 0 Combine like terms: 1 + 2 = 3 3 + x + -3x + 2x2 + x2 = 0 Combine like terms: x + -3x = -2x 3 + -2x + 2x2 + x2 = 0 Combine like terms: 2x2 + x2 = 3x2 3 + -2x + 3x2 = 0 Solving 3 + -2x + 3x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 1 + -0.6666666667x + x2 = 0 Move the constant term to the right: Add '-1' to each side of the equation. 1 + -0.6666666667x + -1 + x2 = 0 + -1 Reorder the terms: 1 + -1 + -0.6666666667x + x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -0.6666666667x + x2 = 0 + -1 -0.6666666667x + x2 = 0 + -1 Combine like terms: 0 + -1 = -1 -0.6666666667x + x2 = -1 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 = -1 + 0.1111111112 Reorder the terms: 0.1111111112 + -0.6666666667x + x2 = -1 + 0.1111111112 Combine like terms: -1 + 0.1111111112 = -0.8888888888 0.1111111112 + -0.6666666667x + x2 = -0.8888888888 Factor a perfect square on the left side: (x + -0.3333333334)(x + -0.3333333334) = -0.8888888888 Can't calculate square root of the right side. The solution to this equation could not be determined.
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