Question

if x= 1,y=2andz=5, find the value of (1) 2x² -3y² +z²​

Answer 1

2(1)^2 - 3(2)^2 + (5)^2

=2-12+25

=15

Hope it helps you....☺️☺️✌️✌️

Answer 2

Step-by-step explanation:

given,

x=1

y=2

z=5

2-12+25

-11