A) \[(x+y+z)(x+y-z)\]
B) \[(y-y-z)(x+y-z)\]
C) \[(x-y+z)(x+y-z)\]
D) None of these
Correct Answer: A
Solution :
We have, \[{{(x-y)}^{2}}+4xy-{{z}^{2}}\] \[={{x}^{2}}+{{y}^{2}}-2xy+4xy-{{z}^{2}}={{(x+y)}^{2}}-{{z}^{2}}\] \[=(x+y+z)(x+y-z)\]You need to login to perform this action.
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