Question

(1- x²- y²) from (xy+y² - x²+1) by subtract​

Answer 1

Answer:

answer is given in the photo

Answer 2

Answer:

hey Dear, here is ur ans ---

$xy + {y}^{2} - {x}^{2} + 1 - (1 - {x }^{2} - {y}^{2} ) \\ xy + {y}^{2} - {x}^{2} + 1 - 1 + {x}^{2} + {y}^{2} \\ xy + 2 {y}^{2}$

Thank you*,,*