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Mathematics, 12.12.2020 16:40 jjjjjj4999
Tommy was trying to solve the system of a linear equation and a quadratic equation shown below. 2x β y = β1 x2 β 5x β y = β7 Tommy had completed the following steps in his algebraic solution process but could not factor the resulting quadratic, x2 β 7x β 1, to complete the problem. Step I: y = 2x + 1 Step II: x2 β 5x β (2x + 1) = β7 Step III: x2 β 5x β 2x β 1 = β7 Step IV: x2 β 7x β 1 = β7 Determine the step in which Tommy made his mistake and justify your reasoning.
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Tommy was trying to solve the system of a linear equation and a quadratic equation shown below. 2x β...
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