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Simplifying 7p2 + -9p = -8 Reorder the terms: -9p + 7p2 = -8 Solving -9p + 7p2 = -8 Solving for variable 'p'. Reorder the terms: 8 + -9p + 7p2 = -8 + 8 Combine like terms: -8 + 8 = 0 8 + -9p + 7p2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. 1.142857143 + -1.285714286p + p2 = 0 Move the constant term to the right: Add '-1.142857143' to each side of the equation. 1.142857143 + -1.285714286p + -1.142857143 + p2 = 0 + -1.142857143 Reorder the terms: 1.142857143 + -1.142857143 + -1.285714286p + p2 = 0 + -1.142857143 Combine like terms: 1.142857143 + -1.142857143 = 0.000000000 0.000000000 + -1.285714286p + p2 = 0 + -1.142857143 -1.285714286p + p2 = 0 + -1.142857143 Combine like terms: 0 + -1.142857143 = -1.142857143 -1.285714286p + p2 = -1.142857143 The p term is -1.285714286p. Take half its coefficient (-0.642857143). Square it (0.4132653063) and add it to both sides. Add '0.4132653063' to each side of the equation. -1.285714286p + 0.4132653063 + p2 = -1.142857143 + 0.4132653063 Reorder the terms: 0.4132653063 + -1.285714286p + p2 = -1.142857143 + 0.4132653063 Combine like terms: -1.142857143 + 0.4132653063 = -0.7295918367 0.4132653063 + -1.285714286p + p2 = -0.7295918367 Factor a perfect square on the left side: (p + -0.642857143)(p + -0.642857143) = -0.7295918367 Can't calculate square root of the right side. The solution to this equation could not be determined.
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