Question

Simplify

y²- x² - (x² - y²) =​

Answer 1

(√2x+√2y)(√2y-√2x)

Step-by-step explanation:

2y^2 - 2x^2

Answer 2

Answer:

2(y+x)(y-x)

Step-by-step explanation:

y^2 - x^2 - (x^2 - y^2)

= y^2 - x^2 - x^2 + y^2

= 2y^2 - 2x^2

= 2(y^2 - x^2)

= 2(y+x)(y-x)