Question

Find the value 2x^3 - x^2y +xy^2 - 3y^3 when x = 2 and y = -2

Answer 1

Just plug in?

Answer 2

2(2)^3 - (2)^2(-2) + 2(-2)^2 - 3(-2)^3

Should I explain how to solve this?

Answer 3

thats the answer @flixoe ??

Answer 4

just put the values of x and y and solve there is no any big problem

Answer 5

You must use the powers, then multiply the monomials with themselves, then add/subtract the monomials depending on the sign between them.

Answer 6

woow.. thanks to u all guys... :)