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Simplifying 0 = pir2 + -2pir + -1s2 + -4s + -40 Reorder the terms: 0 = -40 + -2ipr + ipr2 + -4s + -1s2 Solving 0 = -40 + -2ipr + ipr2 + -4s + -1s2 Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '2ipr' to each side of the equation. 0 + 2ipr = -40 + -2ipr + ipr2 + -4s + 2ipr + -1s2 Remove the zero: 2ipr = -40 + -2ipr + ipr2 + -4s + 2ipr + -1s2 Reorder the terms: 2ipr = -40 + -2ipr + 2ipr + ipr2 + -4s + -1s2 Combine like terms: -2ipr + 2ipr = 0 2ipr = -40 + 0 + ipr2 + -4s + -1s2 2ipr = -40 + ipr2 + -4s + -1s2 Add '-1ipr2' to each side of the equation. 2ipr + -1ipr2 = -40 + ipr2 + -4s + -1ipr2 + -1s2 Reorder the terms: 2ipr + -1ipr2 = -40 + ipr2 + -1ipr2 + -4s + -1s2 Combine like terms: ipr2 + -1ipr2 = 0 2ipr + -1ipr2 = -40 + 0 + -4s + -1s2 2ipr + -1ipr2 = -40 + -4s + -1s2 Reorder the terms: 40 + 2ipr + -1ipr2 + 4s + s2 = -40 + -4s + -1s2 + 40 + 4s + s2 Reorder the terms: 40 + 2ipr + -1ipr2 + 4s + s2 = -40 + 40 + -4s + 4s + -1s2 + s2 Combine like terms: -40 + 40 = 0 40 + 2ipr + -1ipr2 + 4s + s2 = 0 + -4s + 4s + -1s2 + s2 40 + 2ipr + -1ipr2 + 4s + s2 = -4s + 4s + -1s2 + s2 Combine like terms: -4s + 4s = 0 40 + 2ipr + -1ipr2 + 4s + s2 = 0 + -1s2 + s2 40 + 2ipr + -1ipr2 + 4s + s2 = -1s2 + s2 Combine like terms: -1s2 + s2 = 0 40 + 2ipr + -1ipr2 + 4s + s2 = 0 The solution to this equation could not be determined.
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