Question

X+y=6 &x-y=6 then x2 + y2=?

Answer 1

X+y =6

x-y =6

by solving these simultaneous linear equation we get X=6

by substituting value of X as 6 in eq. 1 we get y=6-6=0

Now if you have written to find value of x²+y² then it is equal to 36

or if you have written to find value of 2x + 2y then it is equal to 12

Answer 2

Step-by-step explanation:

x+y=6............1

x-y=6................2

2x=12

x=6.....

on putting the value of x in equation....,1

x+y=6

6+y=6

y=0

so..

X^2+ Y^2=6^2+0=36.....

if it is 2x+2y=2*6=12....then this is ur answer.....