Algebraic expressions are combinations of variables , numbers, and at least one arithmetic operation.
To evaluate an algebraic expression, replace the variable or variables with known values and then use the order of operations .
For your convenience, you can use parenthesis when you plug in negative values to the variables.
Evaluate the expression. Use the values , and .
To evaluate the expression, first substitute for and for in the expression.
Use the order of operations to simplify. First do the operation inside the parenthesis.
Add the numbers and .
Now, multiply and .
So, when is and is , the value of the given expression is .
Evaluate each expression if , and .
To evaluate the expression, replace with and with .
Use the order of operations and simplify the expression.
Perform multiplication and division from left to right.
Add and .
Therefore, for the given values of and , the value of the expression is .