Question

sum of x2-y2,y2-z2 and z2-x2

Answer 1

Answer:

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

Step-by-step explanation:

(x2-y2)+(y2-z2)+(z2-x2)

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

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