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Simplifying 5x2 + 7x + 50 = 0 Reorder the terms: 50 + 7x + 5x2 = 0 Solving 50 + 7x + 5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 10 + 1.4x + x2 = 0 Move the constant term to the right: Add '-10' to each side of the equation. 10 + 1.4x + -10 + x2 = 0 + -10 Reorder the terms: 10 + -10 + 1.4x + x2 = 0 + -10 Combine like terms: 10 + -10 = 0 0 + 1.4x + x2 = 0 + -10 1.4x + x2 = 0 + -10 Combine like terms: 0 + -10 = -10 1.4x + x2 = -10 The x term is 1.4x. Take half its coefficient (0.7). Square it (0.49) and add it to both sides. Add '0.49' to each side of the equation. 1.4x + 0.49 + x2 = -10 + 0.49 Reorder the terms: 0.49 + 1.4x + x2 = -10 + 0.49 Combine like terms: -10 + 0.49 = -9.51 0.49 + 1.4x + x2 = -9.51 Factor a perfect square on the left side: (x + 0.7)(x + 0.7) = -9.51 Can't calculate square root of the right side. The solution to this equation could not be determined.
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