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The Brainliest Answer!
2016-04-10T20:46:14+05:30
(a+b)(a-b) = ( a-b)^2

let see the example in attachment
hope its help u
1 5 1
2016-04-11T15:49:21+05:30
(a+b)(a-b) = a²-ab+ba - b²
                  = a²-b²
                  




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