Math, asked by sridharjocker, 1 year ago


 {( a + b + c)}^{2}  =

Answers

Answered by vishal00762
1

we solve this formula by using below method ,

(x + y)^2 = x^2 + 2xy + y^2

 {(a + b + c)}^{2}  \\  \\ {(a + b + c)}^{2} = (a + b) ^{2}  + 2(a + b)(c) +  {c}^{2}  \\  \\  =  (a + b) ^{2} + (2a + 2b)(c) +  {c}^{2}  \\   \\ =  (a + b) ^{2} + 2ac + 2bc +  {c}^{2}  \\  \\  =  ({a}^{2}  + 2ab +  {b}^{2} ) + 2ac + 2bc +  {c}^{2}  \\  \\  =  {a}^{2}  +  {b}^{2}  +  {c}^{2}  + 2ab + 2bc + 2ac

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