In front of you an algebraic expression:
Replace and calculate
In front of you an algebraic expression:
Replace and calculate
Let's start with the first option.
Let's substitute the data in the expression:
Note that we are dividing between two negative numbers, therefore the result must be a positive number:
Let's remember the rule that any number divided by itself equals 1, therefore:
Now we got:
Let's continue with the second option.
Let's substitute the data in the expression:
Let's reduce z in both numerator and denominator of the fraction and we get:
Let's write the exercise as a simple fraction:
Note that we are dividing between two negative numbers, therefore the result must be a positive number:
Let's convert 4.4 to a simple fraction, and we get:
Let's write the denominator fraction as a complex fraction:
Let's convert the fraction to a multiplication exercise, don't forget to switch between numerator and denominator:
Therefore the final answer is: