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Simplifying r(x + 2) = 2x2 + -5x + 1 Reorder the terms: r(2 + x) = 2x2 + -5x + 1 (2 * r + x * r) = 2x2 + -5x + 1 (2r + rx) = 2x2 + -5x + 1 Reorder the terms: 2r + rx = 1 + -5x + 2x2 Solving 2r + rx = 1 + -5x + 2x2 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Reorder the terms: -1 + 2r + rx + 5x + -2x2 = 1 + -5x + 2x2 + -1 + 5x + -2x2 Reorder the terms: -1 + 2r + rx + 5x + -2x2 = 1 + -1 + -5x + 5x + 2x2 + -2x2 Combine like terms: 1 + -1 = 0 -1 + 2r + rx + 5x + -2x2 = 0 + -5x + 5x + 2x2 + -2x2 -1 + 2r + rx + 5x + -2x2 = -5x + 5x + 2x2 + -2x2 Combine like terms: -5x + 5x = 0 -1 + 2r + rx + 5x + -2x2 = 0 + 2x2 + -2x2 -1 + 2r + rx + 5x + -2x2 = 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 -1 + 2r + rx + 5x + -2x2 = 0 The solution to this equation could not be determined.
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