Replacing x by 4 and y by 2, it is found that the value of the expression is of 8.
The expression given is:
We want to evaluate it for x=4 and y=2, hence, we replace x by 4 and y by 2, then:
The value of the expression is of 8.
A similar problem, in which the objective is finding the value of an expression, is given at brainly.com/question/19548262