If `x=3`,`y=2`then find the value of `x^2+y^2`

find the value of (x+y)^2+(x-y)^2

If 2x+3y=8 and xy=2; then find the value of 4x^(2)+9y^(2)

If x/y = 3/2 , find the value of ( x^2 + y^2 ) /( x^2 - y^2 )

If x^(2)+y^(2)=49 and x-y=3, then find the value of x^(3)-y^(3)

3x+y=19 and x+3y=1 then find the value of 2x+2y

If x=3 and y=4 , find the value of 3x+2y

If x =3 and y=1, then find the values of (i) 3x-2y" "(ii) (22)/(3)x^(2)-(7)/(2)y^(2)

(i) x+2y=-7 and 3x-2y=-1, then find the value of x. (ii) If x+y=8 and 4y-x=2, then find the value of y. (iii) If 3x+5y=9 and 5x+3y=7, then find the value of x+y. (iv) If 3x-y=11 and x-3y=17, then find the value of x-y.