A) \[4a(b+c)\]
B) \[2a(b+c)\]
C) \[3a(b+c)\]
D) \[4a(b-c)\]
Correct Answer: A
Solution :
\[{{(a+b+c)}^{2}}-{{(a-b-c)}^{2}}\] \[=(a+b+c+a-b-c)(a+b+c-a+b+c)\]\[=2a\,(2b+2c)=4a\,(b+c)\]You need to login to perform this action.
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