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Simplifying (3x2 + 2x + 5) + (8x2 + -5x + -4) = 0 Reorder the terms: (5 + 2x + 3x2) + (8x2 + -5x + -4) = 0 Remove parenthesis around (5 + 2x + 3x2) 5 + 2x + 3x2 + (8x2 + -5x + -4) = 0 Reorder the terms: 5 + 2x + 3x2 + (-4 + -5x + 8x2) = 0 Remove parenthesis around (-4 + -5x + 8x2) 5 + 2x + 3x2 + -4 + -5x + 8x2 = 0 Reorder the terms: 5 + -4 + 2x + -5x + 3x2 + 8x2 = 0 Combine like terms: 5 + -4 = 1 1 + 2x + -5x + 3x2 + 8x2 = 0 Combine like terms: 2x + -5x = -3x 1 + -3x + 3x2 + 8x2 = 0 Combine like terms: 3x2 + 8x2 = 11x2 1 + -3x + 11x2 = 0 Solving 1 + -3x + 11x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 11 the coefficient of the squared term: Divide each side by '11'. 0.09090909091 + -0.2727272727x + x2 = 0 Move the constant term to the right: Add '-0.09090909091' to each side of the equation. 0.09090909091 + -0.2727272727x + -0.09090909091 + x2 = 0 + -0.09090909091 Reorder the terms: 0.09090909091 + -0.09090909091 + -0.2727272727x + x2 = 0 + -0.09090909091 Combine like terms: 0.09090909091 + -0.09090909091 = 0.00000000000 0.00000000000 + -0.2727272727x + x2 = 0 + -0.09090909091 -0.2727272727x + x2 = 0 + -0.09090909091 Combine like terms: 0 + -0.09090909091 = -0.09090909091 -0.2727272727x + x2 = -0.09090909091 The x term is -0.2727272727x. Take half its coefficient (-0.1363636364). Square it (0.01859504133) and add it to both sides. Add '0.01859504133' to each side of the equation. -0.2727272727x + 0.01859504133 + x2 = -0.09090909091 + 0.01859504133 Reorder the terms: 0.01859504133 + -0.2727272727x + x2 = -0.09090909091 + 0.01859504133 Combine like terms: -0.09090909091 + 0.01859504133 = -0.07231404958 0.01859504133 + -0.2727272727x + x2 = -0.07231404958 Factor a perfect square on the left side: (x + -0.1363636364)(x + -0.1363636364) = -0.07231404958 Can't calculate square root of the right side. The solution to this equation could not be determined.
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