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Simplifying 4x2 + 15x + 17 = 0 Reorder the terms: 17 + 15x + 4x2 = 0 Solving 17 + 15x + 4x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 4.25 + 3.75x + x2 = 0 Move the constant term to the right: Add '-4.25' to each side of the equation. 4.25 + 3.75x + -4.25 + x2 = 0 + -4.25 Reorder the terms: 4.25 + -4.25 + 3.75x + x2 = 0 + -4.25 Combine like terms: 4.25 + -4.25 = 0.00 0.00 + 3.75x + x2 = 0 + -4.25 3.75x + x2 = 0 + -4.25 Combine like terms: 0 + -4.25 = -4.25 3.75x + x2 = -4.25 The x term is 3.75x. Take half its coefficient (1.875). Square it (3.515625) and add it to both sides. Add '3.515625' to each side of the equation. 3.75x + 3.515625 + x2 = -4.25 + 3.515625 Reorder the terms: 3.515625 + 3.75x + x2 = -4.25 + 3.515625 Combine like terms: -4.25 + 3.515625 = -0.734375 3.515625 + 3.75x + x2 = -0.734375 Factor a perfect square on the left side: (x + 1.875)(x + 1.875) = -0.734375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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