Answer:
-16
Step-by-step explanation:
xz-y²=8×6-(-8)²=48-64=-16
Answer
- 16
if x = 8, and z = 6, then 6 x 8 = 48
if y = 8, 8 x 8 = 64
48 - 64 = -16 therefore, the answer is - 16