Question

xy(x+y) = yz(y+z) = zx( z + x)

Answer 1

Answer:

$xy(x + y) = yz(y + z) = zx(z + x) \\ {x}^{2}y + x {y}^{2} = {y}^{2}z \: + y {z}^{2} + {z}^{2}x + z {x}^{2}$

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