Question

evalute the following algebraic expressions
x²+y²-z²-3xyz if x=1,y=-1,z=2​​
​

Answer 1

Answer:

4

Step-by-step explanation:

x²+y²-z²-3xyz = (1)² + (-1)² - (2)² - 3*(1)(-1)(2)

                      = 1 + 1 - 4 + 6 = 4

Answer 2

Answer:

4

Step-by-step explanation:

x²+y²-z²-3xyz

Given x=1,y=-1,z=2

Putting the values

1+1-4-3(-2)

1+1-4+6=4

HOPE IT HELPS