Math, asked by KanishkGhansela, 1 year ago

factorise a2+4a+4-b2

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Answered by Anonymous
37
\boxed{\mathsf{ Solution : }}

 \mathsf{ = \: {a}^{2} \: + \: 4a \: + \: 4 \: - \: {b}^{2} } \\ \\ \mathsf{ = \: ( \: {a}^{2} \: + \: 4a \: + \: 4 \: ) \: - \: {b}^{2} } \\ \\ \mathsf{ = [ \:{(a)}^{2} \: + \: 2 \: × \: a \: × \: 2 \: + \: {(2)}^{2} \: ] \: - \: {b}^{2}} \\ \\ \mathsf{ Using \: Algebraic \: identity : \: } \\ \\<br /><br />\boxed{ \mathsf{ \implies {a}^{2} \: + \: 2ab \: + \: {b}^{2} \: = \: {( \: a \: + \: b \: )}^{2}}} \\ \\
  \mathsf{ = {( \: a \: + \: 2 \: )}^{2} \: - \: {b}^{2} } \\ \\ <br /><br />\mathsf{ Using \: Algebraic \: identity : } \\ \\ <br /><br />\boxed{\mathsf{ \implies {a}^{2} \: - \: {b}^{2} \: = \: ( \: a \: + \: b\: ) ( \: a \: - \:b \: ) } }\\ \\ \mathsf{ = ( \: a \: + \: 2 \: + \: b \: )( \: a \: + \: 2 \: - \: b \: )} \\ \\ \mathsf{ Rearranging \: the \: terms : } \\ \\<br /><br />\mathsf{ = ( \: a \: + \: b \: + \: 2 \: ) ( \: a \: - \: b \: + \: 2 \: ) }

ishveenn: excellent
Anonymous: Thanks !
KanishkGhansela: gracius
Answered by Kanishka182005
12

Answer:

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