Question

If x+y=z=2, y+z-x=4 and z+x-y=6, find the value of 2y^2z^2 +2z^2y^2 + 2x^2y^2 -x^4-y^4-z^4

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Answer 1

Answer:

What is (x – y)(x + y) + (y – z)(y + z) + (z – x) (z + x) is equal to?



1 answer 



A r s l x n

Answer is 0