Question

Resolva (x^2/y^2-1) (x/x-y -1) -x/y

Answer 1

Resposta:

Explicação passo-a-passo:

=(x²/y²−1)⋅(x/x−y−1)−x/y=

=(x²−y²/y²)⋅((−y+1)−1)−x/y=

=(x²−y²/y2)⋅(−y)−x/y=

=(x²−y²/y⋅1/y)⋅(y⋅−1)−x/y=

=−x²+y²/y−x/y=

=−x²−x+y²/y