Question

simplify(x+y+z) (x+y-z)
solve fast​

Answer 1

Answer:

x² + y² +2xy - z²

Step-by-step explanation:

let x+ y = a

you will observe that it is written in form of

(a+z)(a-z)

which equal to (a²-z²)

putting value of a we get

(x+y)² - z²

= x² + y² + 2xy - z²

Answer 2

I HOPE YOU UNDERSTAND

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