In Exercise, find a numerical example to show that the given statement is false. Then find the mistake in the statement and correct it.
Example: The statement −(b + 2) = −b + 2 is false when b = 5, since −(5 + 2) = −7 but −5 + 2 = −3. The mistake is the sign on the 2. The correct statement is −(b + 2) = −b − 2.
(x − 3)(x − 2) = x2 − 5x − 6
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