Question

simplify (x-y)(x+y)+(y+z)(y-z)=0 step by step
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Answer 1

this question is wrong

and then anyone calculate this question

they obtain

x^2 - z^2 = 0

: (x+z)(x-z)= 0

okay thanks to read my answer

Answer 2

Answer:

x2+xy-yx-y2+y2-yz+zy-z2=0

x2-z2=0

(x+z)(x-z)=0

Step-by-step explanation:

I think this will help you. 2 means square like x2 means x Square.