A) \[(p+q+a+b)\]
B) \[(p+q-a+b)\]
C) \[(p-q+a-b)\]
D) \[(p-q+a+b)\]
Correct Answer: B
Solution :
We have. \[{{(p+q)}^{2}}-{{(a-b)}^{2}}+p+q-a+b\] \[=[{{(p+q)}^{2}}-{{(a-b)}^{2}}]+(p+q)-(a-b)\] \[=[\{(p+q)+(a-b)\}\{(p+q)-(a-b)\}]\] \[+\{(p+q)-(a-b)\}\] \[=\{(p+q)-(a-b)\}[(p+q)+(a-b)+1]\] \[=(p+q-a+b)(p+q+a-b+1)\]You need to login to perform this action.
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