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Answer:
x2 – 4x – 8
Step-by-step explanation:
The quadratic equation in the previous page's last example was:
(x – 2)2 – 12 = 0
The expression on the left-hand side of this equation can be multiplied out and simplified to be:
x2 – 4x – 8
But we still would not have been able to solve the equation, even with the quadratic formatted this way, because it doesn't factor and it isn't