Problem 1
Answer:
- The square root of the expression of the difference of x^2 and 11.
- The quotient of 2 times a number and -1
- The sum of the square root of two times a number and 11.
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Step-by-step 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
and 11.
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Problem 2
Answer:
The value of an algebraic expression depends on its variables
- Substitute the known value for each variable.
- Simplify using the order of operations
- Use the work to answer any word problems related to the expression.
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Step-by-step 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).