Mathematics · Three Dimensional Geometry
If (x, y, z) is an arbitrary point lying on a plane P which passes through the points (42, 0, 0), (0, 42, 0) and (0, 0, 42), then the value of the expression: 3 + x - 11(y - 19)2(z - 12)2 + y - 19(x - 11)2(z - 12)2 + z - 12(x - 11)2(y - 19)2 - x + y + z14(x - 11)(y - 19)(z - 12) is:
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