Math, asked by 0uu0, 7 months ago

Evaluate:- (i) (a+2b)^2
(ii) (2a-3b)^2​

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Answered by bandana1970
2

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Answered by Anonymous
22

\huge  \color{magenta}\fcolorbox{aqua}{aqua}   {\underline {\underline{\cal{S\sf olution}}}}

 \sf(i) \: (a + 2b)^{2}  =  {a}^{2}  +  {ab}^{2}  + 2a.2b \\  \\  \rightarrow \sf {a}^{2}  + 4 {b}^{2}  + 4a {b}^{2}

 \sf(ii) \: (2a - 3b) ^{2}  =  {2a}^{2}  +  {3b}^{2}  - 2(2a.3b) \\  \\  \rightarrow \sf  {4a}^{2}  + 9 {b}^{2}  - 12ab

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