Question: The following is the student's incorrect work in solving a quadratic using the zero product property. Explain the student's mistake. Step 1: x-3x-4=8 Step

The following is the student's incorrect work in solving a quadratic using

The following is the student's incorrect work in solving a quadratic using the zero product property. Explain the student's mistake. Step 1: x-3x-4=8 Step 2: (x-4) (x + 1) = 8 - Step 3: x 4 = 8 or x + 1 = 8 Step 4: x = 12 or x = 7

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