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Simplifying 16x2 + 28x + 49 = 0 Reorder the terms: 49 + 28x + 16x2 = 0 Solving 49 + 28x + 16x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. 3.0625 + 1.75x + x2 = 0 Move the constant term to the right: Add '-3.0625' to each side of the equation. 3.0625 + 1.75x + -3.0625 + x2 = 0 + -3.0625 Reorder the terms: 3.0625 + -3.0625 + 1.75x + x2 = 0 + -3.0625 Combine like terms: 3.0625 + -3.0625 = 0.0000 0.0000 + 1.75x + x2 = 0 + -3.0625 1.75x + x2 = 0 + -3.0625 Combine like terms: 0 + -3.0625 = -3.0625 1.75x + x2 = -3.0625 The x term is 1.75x. Take half its coefficient (0.875). Square it (0.765625) and add it to both sides. Add '0.765625' to each side of the equation. 1.75x + 0.765625 + x2 = -3.0625 + 0.765625 Reorder the terms: 0.765625 + 1.75x + x2 = -3.0625 + 0.765625 Combine like terms: -3.0625 + 0.765625 = -2.296875 0.765625 + 1.75x + x2 = -2.296875 Factor a perfect square on the left side: (x + 0.875)(x + 0.875) = -2.296875 Can't calculate square root of the right side. The solution to this equation could not be determined.
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