Question

(x+y-z) (x-y)
please solve this ​

Answer 1

Step-by-step explanation:

(x+y-z)(x-y)=x²-xy+xy-y²-zx+zy=x²-y²-zx+zy

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Answer 2

Step-by-step explanation:

= x(x+y-z) -y(x+y-z)

= x² + xy - zx -xy - y² + xy

= x² - y² -zx + xy

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