expand each of the following using suitable identities (x+2y+4z)2 | 2x-y+z)2 | 1/4a-1/2b+1
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Date: 2022-07-04

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Q-4  Expand each of the following using suitable identities 
(i)   (x+2y+4z)2     (ii)  (2x-y+z)2        (iii)  (-2x+3y+2z)2 
(iv) (3a-7b-c)2      (v)  (-2x+5y-3z)2   (vi)  (1/4a-1/2b+1)2

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