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Simplifying 7n2 = 8n + -8 Reorder the terms: 7n2 = -8 + 8n Solving 7n2 = -8 + 8n Solving for variable 'n'. Reorder the terms: 8 + -8n + 7n2 = -8 + 8n + 8 + -8n Reorder the terms: 8 + -8n + 7n2 = -8 + 8 + 8n + -8n Combine like terms: -8 + 8 = 0 8 + -8n + 7n2 = 0 + 8n + -8n 8 + -8n + 7n2 = 8n + -8n Combine like terms: 8n + -8n = 0 8 + -8n + 7n2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. 1.142857143 + -1.142857143n + n2 = 0 Move the constant term to the right: Add '-1.142857143' to each side of the equation. 1.142857143 + -1.142857143n + -1.142857143 + n2 = 0 + -1.142857143 Reorder the terms: 1.142857143 + -1.142857143 + -1.142857143n + n2 = 0 + -1.142857143 Combine like terms: 1.142857143 + -1.142857143 = 0.000000000 0.000000000 + -1.142857143n + n2 = 0 + -1.142857143 -1.142857143n + n2 = 0 + -1.142857143 Combine like terms: 0 + -1.142857143 = -1.142857143 -1.142857143n + n2 = -1.142857143 The n term is -1.142857143n. Take half its coefficient (-0.5714285715). Square it (0.3265306123) and add it to both sides. Add '0.3265306123' to each side of the equation. -1.142857143n + 0.3265306123 + n2 = -1.142857143 + 0.3265306123 Reorder the terms: 0.3265306123 + -1.142857143n + n2 = -1.142857143 + 0.3265306123 Combine like terms: -1.142857143 + 0.3265306123 = -0.8163265307 0.3265306123 + -1.142857143n + n2 = -0.8163265307 Factor a perfect square on the left side: (n + -0.5714285715)(n + -0.5714285715) = -0.8163265307 Can't calculate square root of the right side. The solution to this equation could not be determined.
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