We will investigate how to evaluate the expression given in terms of variables as follows:
The above expression is dependent on two variables namely ( x and y ). To evaluate the above expression we need the values of the two variables given as follows:
The only step involved in the basic evaluation of expression is to " substitute " the values of respective variables as follows:
Then use the basic methematical operation keeping in mind the rule of "PEMDAS" when applying each parameter. We will solve the respective parentheis as follows:
Apply the basic mathematical operaiton of " subtracttion " as follows:
