Question

Evaluate the expression when x=3 , y=−4 , and z=−6.
z−2xy=

Answer 1

x = 3 , y = −4 , and z = −6

z-2xy =

Substitute the value of x,y and z in the expression.

-6-2(3)(-4)

-6-2(-12)

-6+24

18