What is factor+(xy-1)(x-1)(y+1)-xy ?

The solution to factor+(xy-1)(x-1)(y+1)-xy is x^2y^2+x^2y-xy^2-3xy-x+y+1

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factor+(xy-1)(x-1)(y+1)-xy

factor

+ (x y - 1) (x - 1) (y + 1) - x y

x^{2} y^{2} + x^{2} y - x y^{2} - 3 x y - x + y + 1

Solution steps

(x y - 1) (x - 1) (y + 1) - x y

Expand

(x y - 1) (x - 1) (y + 1) : x^{2} y^{2} + x^{2} y - x y^{2} - 2 x y - x + y + 1

= x^{2} y^{2} + x^{2} y - x y^{2} - 2 x y - x + y + 1 - x y

Simplify

x^{2} y^{2} + x^{2} y - x y^{2} - 2 x y - x + y + 1 - x y : x^{2} y^{2} + x^{2} y - x y^{2} - 3 x y - x + y + 1

= x^{2} y^{2} + x^{2} y - x y^{2} - 3 x y - x + y + 1

e^{(x - y)}

e^{x} - e^{- x}

(x + y + z) (x y + x z + yz) - x yz

63

x y - b x + a y - ab

What is factor+(xy-1)(x-1)(y+1)-xy ?
The solution to factor+(xy-1)(x-1)(y+1)-xy is x^2y^2+x^2y-xy^2-3xy-x+y+1