Question

a(x-b) –b (x-a) = a2
-b
2

Answer 1

a(x-b) – b(x-a) = a²- b²

ax - ab - bx + ab = a²- b²

ax - bx =  a²- b²

x(a-b) = (a+b)(a-b)

x = a+b

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