Answer:
Hi! The answer to your question is B. 
Step-by-step explanation:
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Answer:
Sorry. What's the question?
What can a denominator never be?
0
so, we need to figure what x can't be... the only way to multiply 2 things together to get 0 is if one or both are zero.
so, what x values make our denominator 0?
to figure this out, we need to set (x-1)(x-2)=0
now we split and solve.

so when x is 1 or 2 the function doesnt make sense.
but, x can be every other number and it does, so the answer is
ALL REAL NUMBERS not equal to 1 or 2
Answer:
8
Step-by-step explanation:
The square root of 16 is 4, because 4 x 4 = 16
The square root of 4 is 2, because 2 x 2 = 4
Therefore, your problem looks like 4 x 2
4 x 2 = 8