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Hi Sherre,
This is really two problems.
- If x2 - 12x ≥ 0 then |x2 - 12x| = x2 -
12x and hence
|x2 - 12x| = 8 is x2 - 12x =
8 or x2 - 12x - 8 = 0. This equation you can solve by factoring
or by using the general quadratic.
- If x2 - 12x < 0 then |x2 - 12x| = -(x2 -
12x) and
|x2 - 12x| = 8 is -(x2 - 12x) = 8 or x2 -
12x + 8 = 0. This equation you can also solve by factoring or by using
the general quadratic.
Penny
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