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Simplifying 49x2 + -16x + 7 = 0 Reorder the terms: 7 + -16x + 49x2 = 0 Solving 7 + -16x + 49x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 49 the coefficient of the squared term: Divide each side by '49'. 0.1428571429 + -0.3265306122x + x2 = 0 Move the constant term to the right: Add '-0.1428571429' to each side of the equation. 0.1428571429 + -0.3265306122x + -0.1428571429 + x2 = 0 + -0.1428571429 Reorder the terms: 0.1428571429 + -0.1428571429 + -0.3265306122x + x2 = 0 + -0.1428571429 Combine like terms: 0.1428571429 + -0.1428571429 = 0.0000000000 0.0000000000 + -0.3265306122x + x2 = 0 + -0.1428571429 -0.3265306122x + x2 = 0 + -0.1428571429 Combine like terms: 0 + -0.1428571429 = -0.1428571429 -0.3265306122x + x2 = -0.1428571429 The x term is -0.3265306122x. Take half its coefficient (-0.1632653061). Square it (0.02665556018) and add it to both sides. Add '0.02665556018' to each side of the equation. -0.3265306122x + 0.02665556018 + x2 = -0.1428571429 + 0.02665556018 Reorder the terms: 0.02665556018 + -0.3265306122x + x2 = -0.1428571429 + 0.02665556018 Combine like terms: -0.1428571429 + 0.02665556018 = -0.11620158272 0.02665556018 + -0.3265306122x + x2 = -0.11620158272 Factor a perfect square on the left side: (x + -0.1632653061)(x + -0.1632653061) = -0.11620158272 Can't calculate square root of the right side. The solution to this equation could not be determined.
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