Jedida solved the quadratic equation x? - 96 = 4x by factoring. Her
work is shown below. At which step did Jedida first make a mistake, if at all?
x? - 96 = 4х
Step 1: x2 + 4x - 96 = 0 Add 4x to both sides.
Step 2: (x + 12) (x - 8) = 0 Factor.
Step 3: x + 12 = 0 or x - 8 = 0 Use the Zero Product Property.
x = -12 or x = 8
(1 point)
• Step 3; she did not apply the Zero Product Property correctly.
• Step 1; she added 4x to both sides instead of subtracting.
• Step 2; she did not factor the left side of the equation correctly.
• She did not make any mistakes.
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Step 1; she added 4x to both sides instead of subtracting.
Step 1: x^2 + 4x - 96 = 0 Add 4x to both sides.
Step 2: (x + 12) (x - 8) = 0 Factor.
Step 3: x + 12 = 0 or x - 8 = 0 Use the Zero Product Property.
x = -12 or x = 8
Jedida did not make any mistakes while solving the quadratic equation x^2 - 96 = 4x.