Evaluate the following for x = 5 and y = 1 5xy^2 - 3 =

We must follow order of operations rules here.  The exponentiation must be done first, followed by the multiplication; only then does subtraction happen.

Subbing 1 for y in 5xy^2 - 3, we get 5x - 3.  Subbing 5 for x, we get 5(5)-3=22.

The value of the given expesion at x=5 and y=1 is 22.

i think this could be a possible answer (1 / 84) -1

good luck! : d