Answer:
i. 33
ii. 1488 
iii. 65 
Step-by-step explanation:
i. 4x² − 3y² + 5z²
Putting the values x=2, y=-1 and z=2
 4(2)² − 3(-1)² + 5(2)²
4×4 − 3×(1)² + 5×(4)
(16) -  (3×1) + (20)
16 -  3+ 20
36 - 3
33
ii. 3x³ − 2x(4yz+5x²)
Putting the values x=2, y=-1 and z=2
[3(2)³ − 2×2(4×(-1)×2 + 5×(2)²)] 
[3(8)³ − 2×2(-8 + 5×4)] 
[3 ×512 -  2×2(-8 +20)]
[1536 - 4(12)]
[1536 - 48]
1488 
iii. 1−4x(yz+3xy)
Putting the values x=2, y=-1 and z=2
[1 - 4 × 2((-1)×2 + 3×2×(-1))] 
[1- 8(-2 + (-6))] 
[1- 8 (-2 -6)] 
[1 - 8(-8)] 
[1 +64] 
65 
 
        
             
        
        
        
Answer:
no not me sorry I wish I could help.
 
        
             
        
        
        
Answer:
-14x
Step-by-step explanation:
-4x+-10x =-14x