Expand the question :-
(2x - y - z)^2
answer please
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Expand the question :- (2x - y - z)^2 answer please
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Answer:
2x−y+z)2
⇒A2+B2+C2=A2+B2+C2+2AB+2BC+2CA
⇒(4x2+y2+z2−4xz−2yz+4xz)
Using Identity (a-b-c)²= a²+b²+c²-2ab+2bc-2ca
(2x-y+z)²= 4x² + y² + z² - 4xy +2yz -4xz
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