InterviewSolution
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InterviewSolution
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`{:("Column" A ,, "Column" B) , ((a+b)^(2) = ,, (a) (x + 1)^(2) ( x-1)), (x^(3) - x^(2) - x + 1 = ,, (b) (a-b) + 4ab), ((a +b) (a^(2) - ab + b^(2)) = ,, (a^(3) + b^(3))), ((x + 1) (x^(2) - 1) = ,, (d) (x -1)^(2) (x + 1)), (,, (e) (a^(3) - b^(3))):}` |
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Answer» Correct Answer - b , d , c , a `to` (b) : `(a -b)^(2) + 4ab = (a + b)^(2)` `to` (d) : `x^(3) - x^(2) -x + 1 = x^(2) ( x - 1) - 1( x - 1)` `= (x -1) (x^(2) - 1)` = `(x - 1) (x-1) ( x +1)` ` (x-1)^(2) (x +1)` `to` (c) , `(a + b) (a^(2) - ab + b^(2)) = a^(3) + b^(3)` `to` (a) : `(x + 1) (x^(2) - 1) = (x +1) (x + 1) (x -1) = (x + 1)^(2) (x-1)` |
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