Question

Solve this-

c²-x²-2xy-y²​

Answer 1

Answer:

(c+x-y)(c-x+y)

Step-by-step explanation:

(c)2 - (x-y)2

= {c+(x-y)} {c-(x-y)}

= (c+x-y) (c-x+y)

Answer 2

Answer:

take - common

= -(-c^2+x^2+2xy+y^2) (^2 implies square)

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

= -(x+y)^2+c^2//