3 Write a C++ expression for the following:
a. Decrease A by the square root of the values assigned to B.
b. Decrease the value of T by two third of the value assign to S less 8
c. Assign the average of A,B and C less twice the value assigned to R to H
d. a3 -3a2b + 3ab2-b3
e. Increase the value assign to U by three times the value assign to V less double y