Question

if x is equal to 2 , Y is equal to -1 ,z equal to 4 so fund the equation of x square minus y square Z Square + 4 y square Z plus 8 ​

Answer 1

Answer:

12

Step-by-step explanation:

Given;

x=2

y=-1

z=4

to find:x^2-y^2z^2+4y^2z+8

=2^2-(-1^2)×4^2+4×(-1^2)×4+8

=4+1×16+4×(-1)×4+8

=4+16+(-16)+8

=4+16-16+8

=28-16

=12