Question

Fatorar o Polinômio:

x²y²-1

Obrigado !

Answer 1

$x^2*y^2-1\\\\(x*y)^2-1 \to [\text{diferenca dos quadrados]}\\\\\boxed{ a^2-b^2 = (a+b)*(a-b)}\\\\ (xy)^2-1^2=\boxed{\boxed{ (xy+1)*(xy-1)}}$