1.

-x-y+z ka whole square formula

Answer»

ANSWER:

(X-y-Z)². = [x+(-y)+(-z)]². = x²+(- y)²+(-z)²+2x(-y)+2(-y)(-z)+2(-z)x. /* By ALGEBRAIC IDENTITY: (a+b+c)²=a²+b²+c²+2ab+2bc+2ca */.



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