NO LINKS!!! Fill in the blanks of this sheet. Part 1

Problem 1
Answer:
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Explanation:
The term "difference" is the result of subtraction. We're subtracting the x^2 and 11. Then applying the square root to the result.
Question 2 has the blanks filled correctly.
For the last sentence, we have a sum of the terms [tex]\sqrt{2x}[/tex] and 11.
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Problem 2
Answer:
The value of an algebraic expression depends on its variables
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Explanation:
The variables are placeholders for numbers
So for instance, saying x+5 is like saying "some unknown number plus 5".
We could replace it with something like x = 10 to get x+5 = 10+5 = 15
Once the variable is replaced, you use the order of operations PEMDAS (some books refer to it as BODMAS).