Question

Subtract 1 + a² + b² from the sum of 1-a²b² and a²- b²​

Answer 1

Answer:

a^2b^2 -2b^2

Step-by-step explanation:

1-a^2b^2 + (a^2-b^2)

1-a^2b^2 + a^2-b^2

then,

1-a^2b^2 + a^2-b^2 - (1+a^2+b^2)

= 1-a^2b^2 + a^2-b^2 -1-a^2-b^2

=a^2b^2 -2b^2//