Respuesta :

xz(4y-2z)
(4)(1)(4(2) - 2(1))
(4)(8-2)
4(6)
24

24 is your answer

hope this helps

plug in the numbers to the right variable & solve like you normally would, using PEMDAS in this case

4*1(4*2-2*1)

 4(8-2)

4(6)

24