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Simplifying z(z + 2) = (z * z) + 2z + 1 Reorder the terms: z(2 + z) = (z * z) + 2z + 1 (2 * z + z * z) = (z * z) + 2z + 1 (2z + z2) = (z * z) + 2z + 1 Multiply z * z 2z + z2 = (z2) + 2z + 1 2z + z2 = z2 + 2z + 1 Reorder the terms: 2z + z2 = 1 + 2z + z2 Add '-2z' to each side of the equation. 2z + -2z + z2 = 1 + 2z + -2z + z2 Combine like terms: 2z + -2z = 0 0 + z2 = 1 + 2z + -2z + z2 z2 = 1 + 2z + -2z + z2 Combine like terms: 2z + -2z = 0 z2 = 1 + 0 + z2 z2 = 1 + z2 Add '-1z2' to each side of the equation. z2 + -1z2 = 1 + z2 + -1z2 Combine like terms: z2 + -1z2 = 0 0 = 1 + z2 + -1z2 Combine like terms: z2 + -1z2 = 0 0 = 1 + 0 0 = 1 Solving 0 = 1 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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