1.

Subtracting x2 - y2 + z?from x-y-z,​

Answer»

The value of TERMS as PER the QUESTION is calculated as follows(3x−y+z)+(x+y−3z)−(x−2y−z)=3x+x−x−y+y+2y+z−3z+zWe GET,=3x+2y−zTherefore, (3x−y+z)+(x+y−3z)−(x−2y−z)=3x+2y−z



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