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Simplifying 2(2) + -1(4)(4) + -4(2) + 1 = 0 Multiply 2 * 2 4 + -1(4)(4) + -4(2) + 1 = 0 Multiply -1 * 4 4 + -4 * 4 + -4(2) + 1 = 0 Multiply -4 * 4 4 + -16 + -4(2) + 1 = 0 Multiply -4 * 2 4 + -16 + -8 + 1 = 0 Combine like terms: 4 + -16 = -12 -12 + -8 + 1 = 0 Combine like terms: -12 + -8 = -20 -20 + 1 = 0 Combine like terms: -20 + 1 = -19 -19 = 0 Solving -19 = 0 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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