Question

if x = 2, y = 1 and z = -3, then x + y + z- 3xyz
is equal to

​

Answer 1

Answer:

18

Step-by-step explanation:

x + y + z - 3xyz

= 2 + 1 + (-3) - 3(2)(1)(-3)

= 0 + 18

= 18

Answer 2

Answer:

2+1-3-3×(2×1×-3)

=-3×(-6)

=18