Question

If x = 3 and y = -2, what is the value of the expression x^3-2xy^2?

A. 0
B. -51
C. 13
D. -3
E. 33

Answer 1

3

Explanation:

The expression is
`x^3-2xy^2`. To find the value, substitute the values x = 3 and y =-2 then follow order of operations.

`x^3-2xy^2\\3^3 -2(3)(-2)^2\\27 -2(3)(4)\\27 - 24\\3`