X /A + y/ b = 2 ,x - b/ y = a square - b square solve by elimination find X and Y
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bx / a ay / b = a2 + b2 ----- eq 1
x+y = 2ab ------- eq 2
from eq1 ----- b2x + a2 ab = a2 + b2
→ b2 x a2y = a3 b - a2y
→ b2 (x-ab) = a2 (ab - y)
from eq2 ----- b2 (x - x/2 + y/2)
= a2 (x/2 + y/2 - y)
→ b2 ( x/2 - y/2) = a2 (x/2 + y/2)
→ b2 x - b2y = a2x - a2y
x+y = 2ab ------- eq 2
from eq1 ----- b2x + a2 ab = a2 + b2
→ b2 x a2y = a3 b - a2y
→ b2 (x-ab) = a2 (ab - y)
from eq2 ----- b2 (x - x/2 + y/2)
= a2 (x/2 + y/2 - y)
→ b2 ( x/2 - y/2) = a2 (x/2 + y/2)
→ b2 x - b2y = a2x - a2y
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