Question

The value of (x + y) (x + y) + (y – z) (y + z) + (z – x) (z + x) is equal to​

Answer 1

Step-by-step explanation:

4xyz

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Answer 2

Answer:

(x+y)² + (y²-z²) + ( z²-x²) = x²+2xy+y² + y²- z²+ z²- x²

= 2xy + 2y²

Step-by-step explanation:

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