x/a – y/b = 0

=> bx − ay = 0 ……. (i)

ax + by = a² + b² …….. (ii)

Multiplying a and b to equation (i) and (ii) respectively, we get

b²x − aby = 0 …………… (iii)

a²x + aby = a ³ + ab³ …… (iv)

Adding equations (iii) and (iv), we get

b²x + a²x = a ³ + ab²

x (b² + a²) = a (a² + b²) x = a

Using equation (i), we get

b(a) − ay = 0

ab − ay = 0

ay = ab,

y = b