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Simplifying 4.9x2 + -4x + 2 = 0 Reorder the terms: 2 + -4x + 4.9x2 = 0 Solving 2 + -4x + 4.9x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 4.9 the coefficient of the squared term: Divide each side by '4.9'. 0.4081632653 + -0.8163265306x + x2 = 0 Move the constant term to the right: Add '-0.4081632653' to each side of the equation. 0.4081632653 + -0.8163265306x + -0.4081632653 + x2 = 0 + -0.4081632653 Reorder the terms: 0.4081632653 + -0.4081632653 + -0.8163265306x + x2 = 0 + -0.4081632653 Combine like terms: 0.4081632653 + -0.4081632653 = 0.0000000000 0.0000000000 + -0.8163265306x + x2 = 0 + -0.4081632653 -0.8163265306x + x2 = 0 + -0.4081632653 Combine like terms: 0 + -0.4081632653 = -0.4081632653 -0.8163265306x + x2 = -0.4081632653 The x term is -0.8163265306x. Take half its coefficient (-0.4081632653). Square it (0.1665972511) and add it to both sides. Add '0.1665972511' to each side of the equation. -0.8163265306x + 0.1665972511 + x2 = -0.4081632653 + 0.1665972511 Reorder the terms: 0.1665972511 + -0.8163265306x + x2 = -0.4081632653 + 0.1665972511 Combine like terms: -0.4081632653 + 0.1665972511 = -0.2415660142 0.1665972511 + -0.8163265306x + x2 = -0.2415660142 Factor a perfect square on the left side: (x + -0.4081632653)(x + -0.4081632653) = -0.2415660142 Can't calculate square root of the right side. The solution to this equation could not be determined.
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