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Simplifying 39X2 + 3X + 7 = 0 Reorder the terms: 7 + 3X + 39X2 = 0 Solving 7 + 3X + 39X2 = 0 Solving for variable 'X'. Begin completing the square. Divide all terms by 39 the coefficient of the squared term: Divide each side by '39'. 0.1794871795 + 0.07692307692X + X2 = 0 Move the constant term to the right: Add '-0.1794871795' to each side of the equation. 0.1794871795 + 0.07692307692X + -0.1794871795 + X2 = 0 + -0.1794871795 Reorder the terms: 0.1794871795 + -0.1794871795 + 0.07692307692X + X2 = 0 + -0.1794871795 Combine like terms: 0.1794871795 + -0.1794871795 = 0.0000000000 0.0000000000 + 0.07692307692X + X2 = 0 + -0.1794871795 0.07692307692X + X2 = 0 + -0.1794871795 Combine like terms: 0 + -0.1794871795 = -0.1794871795 0.07692307692X + X2 = -0.1794871795 The X term is 0.07692307692X. Take half its coefficient (0.03846153846). Square it (0.001479289941) and add it to both sides. Add '0.001479289941' to each side of the equation. 0.07692307692X + 0.001479289941 + X2 = -0.1794871795 + 0.001479289941 Reorder the terms: 0.001479289941 + 0.07692307692X + X2 = -0.1794871795 + 0.001479289941 Combine like terms: -0.1794871795 + 0.001479289941 = -0.178007889559 0.001479289941 + 0.07692307692X + X2 = -0.178007889559 Factor a perfect square on the left side: (X + 0.03846153846)(X + 0.03846153846) = -0.178007889559 Can't calculate square root of the right side. The solution to this equation could not be determined.
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