Question

Q.1) If x = 2, y = -2 and z = 3, find the value of:
x2 + y2 + 22 – 2xy – 2yz - 22x
Pls I need it quick with a full explanation

Answer 1

Answer:

we need to first put the values

x2 =2×2=4

y2 = -2×2=-4

2xy= 2*2*-2=-8

2yz= 2*2*3 = 12

22x= 22*2 =44

Step-by-step explanation:

4+(-4)+22-(-8)-12-44

4-4 +22+8-12-44

34-60

-26

hope it helps