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Simplifying 2z(z + 6) = 2z2 + 12z + -1 Reorder the terms: 2z(6 + z) = 2z2 + 12z + -1 (6 * 2z + z * 2z) = 2z2 + 12z + -1 (12z + 2z2) = 2z2 + 12z + -1 Reorder the terms: 12z + 2z2 = -1 + 12z + 2z2 Add '-12z' to each side of the equation. 12z + -12z + 2z2 = -1 + 12z + -12z + 2z2 Combine like terms: 12z + -12z = 0 0 + 2z2 = -1 + 12z + -12z + 2z2 2z2 = -1 + 12z + -12z + 2z2 Combine like terms: 12z + -12z = 0 2z2 = -1 + 0 + 2z2 2z2 = -1 + 2z2 Add '-2z2' to each side of the equation. 2z2 + -2z2 = -1 + 2z2 + -2z2 Combine like terms: 2z2 + -2z2 = 0 0 = -1 + 2z2 + -2z2 Combine like terms: 2z2 + -2z2 = 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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