The sum of x and y decreased by their product is (x + y)- xy.
The difference between 72 and 16
17 - y
(3 + -8) - 8
A negative exponent means the reciprocal of the positive exponent → y^-8 = 1/(y^8) = 1/(y×y×y×y×y×y×y×y)
It is difficult to tell what expression you are trying to convey. 8 multiplied by x, and then take y away, is 8x-y x take away y, and then 8 multiplied by this number, is 8(x-y) 8 multiplied by x, and divided by y is 8x/y
x and y are variables, so unless you define their values, this question has no definite answer. but, i can simplify it for you: xy-8, x*y-8, (xy)-8, xy+-8. There are a lot more ways, but i recommend you use XY-8.
The sum of x and y decreased by their product is (x + y)- xy.
The difference between 72 and 16
y-6
17 - y
6x - (6 + y)
-6
The expression is: 2y -20
8-x 8-x
The value of y increases, such that x*y remains a constant.
(3 + -8) - 8