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Simplifying 4.905x2 + 5x + 5 = 0 Reorder the terms: 5 + 5x + 4.905x2 = 0 Solving 5 + 5x + 4.905x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 4.905 the coefficient of the squared term: Divide each side by '4.905'. 1.019367992 + 1.019367992x + x2 = 0 Move the constant term to the right: Add '-1.019367992' to each side of the equation. 1.019367992 + 1.019367992x + -1.019367992 + x2 = 0 + -1.019367992 Reorder the terms: 1.019367992 + -1.019367992 + 1.019367992x + x2 = 0 + -1.019367992 Combine like terms: 1.019367992 + -1.019367992 = 0.000000000 0.000000000 + 1.019367992x + x2 = 0 + -1.019367992 1.019367992x + x2 = 0 + -1.019367992 Combine like terms: 0 + -1.019367992 = -1.019367992 1.019367992x + x2 = -1.019367992 The x term is 1.019367992x. Take half its coefficient (0.509683996). Square it (0.2597777758) and add it to both sides. Add '0.2597777758' to each side of the equation. 1.019367992x + 0.2597777758 + x2 = -1.019367992 + 0.2597777758 Reorder the terms: 0.2597777758 + 1.019367992x + x2 = -1.019367992 + 0.2597777758 Combine like terms: -1.019367992 + 0.2597777758 = -0.7595902162 0.2597777758 + 1.019367992x + x2 = -0.7595902162 Factor a perfect square on the left side: (x + 0.509683996)(x + 0.509683996) = -0.7595902162 Can't calculate square root of the right side. The solution to this equation could not be determined.
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