Question

If x = 5, y = 3 and z = 2 then xz (4y - 2z) is 80 and 116

Answer 1

Two different answers? Please clarify this.

If x = 5, y = 3 and z = 2 then xz (4y - 2z) is (5)(2)(4[3] - 2[2])
= (10)(8) = 80

Doing this problem correctly hinges upon your following the appropriate Order of Operations rules (PEMDAS).

Answer 2

It is 80 because: (5)(2)((4)(3)-(2)(2)) = 10(12-4) = 10(8) = 80