When the sum of 1.9 and 2.2 is subtracted from the product of 1.9 and 2.2, what is the difference?
1 answer:
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Now we look at the common denominator.
It is x(x + 2)(x - 2).
x cannot be zero, -2 or 2 because that would cause a zero in the denominator.
Since we get x = 8, and x = 8 does not have to be excluded from the domain, the answer is x = 8.
Answer: x = 8