Question

xy+y2+zz=11 is it alinear equation​

Answer 1

Answer:

Solution

x+y+z=6

Squaring on both sides, we get

x2+y2+c2+2(xy+yz+zx)=62

x2+y2+c2+2(11)=36

x2+y2+c2=36−22

x2+y2+c2=14