Question

factorise a²+2ab-b²-z²​

Answer 1

Answer:

a square + 2ab -b square -z square.

Step-by-step explanation:

a square- b square +2ab - z square

-z square

Answer 2

Ans:- a²+2ab+b²-z²

= (a+b)²-(z)²

= (a+b-z)(a+b+z)

here is your answer

hope it will help you