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Simplifying 11x2 + 8x + 7 = 0 Reorder the terms: 7 + 8x + 11x2 = 0 Solving 7 + 8x + 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'. 0.6363636364 + 0.7272727273x + x2 = 0 Move the constant term to the right: Add '-0.6363636364' to each side of the equation. 0.6363636364 + 0.7272727273x + -0.6363636364 + x2 = 0 + -0.6363636364 Reorder the terms: 0.6363636364 + -0.6363636364 + 0.7272727273x + x2 = 0 + -0.6363636364 Combine like terms: 0.6363636364 + -0.6363636364 = 0.0000000000 0.0000000000 + 0.7272727273x + x2 = 0 + -0.6363636364 0.7272727273x + x2 = 0 + -0.6363636364 Combine like terms: 0 + -0.6363636364 = -0.6363636364 0.7272727273x + x2 = -0.6363636364 The x term is 0.7272727273x. Take half its coefficient (0.3636363637). Square it (0.1322314050) and add it to both sides. Add '0.1322314050' to each side of the equation. 0.7272727273x + 0.1322314050 + x2 = -0.6363636364 + 0.1322314050 Reorder the terms: 0.1322314050 + 0.7272727273x + x2 = -0.6363636364 + 0.1322314050 Combine like terms: -0.6363636364 + 0.1322314050 = -0.5041322314 0.1322314050 + 0.7272727273x + x2 = -0.5041322314 Factor a perfect square on the left side: (x + 0.3636363637)(x + 0.3636363637) = -0.5041322314 Can't calculate square root of the right side. The solution to this equation could not be determined.
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