Question

SOLVE- [1/2 x-y] (x+y) + (x-y)(x+y)

Answer 1

Answer:

12

Step-by-step explanation:

xy/(x+y) = 1/2

=> xy = 1/2(x+y)

=> xy = 1/2x + 1/2 y ____(1)

xy/(x-y) = 1/6

=> xy = 1/6(x - y)

=> xy = 1/6x - 1/6y ______(2)

(1) = (2)

1/2x + 1/2 y = 1/6x - 1/6y

=> x(1/2 - 1/6) = -y(1/2 + 1/6)

=> x(2/6)= -y(4/6)

=> 2x = -4y

=> x = -2y

-2y×y/(-2y+y) = 1/2

=> -2y²-12y = 0

=> -2y(y+6) = 0

=> y = -6

x = -2(-6) = 12

Answer 2

Answer:

you can solve it by simplifying

Step-by-step explanation:

(x-y)(x+y) = x^-y^2