Algebra Fraction Problem - VariableI honestly can't figure out how to get this answer, I feel like a complete idiot. I've taken up to Calc 2, so I'm not an idiot just been a while.I have the problem.. ( n − 1 ) 2 − ( n − 2 ) ( n − 1 ) 2 The answer is.. ( n − 1 ) n 2 How do I get there?? 2 ( n − 1 ) ( n − 1 ) 2 − ( n − 2 ) ( n − 1 ) 2 …I'm so lost..

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Algebra Fraction Problem - VariableI honestly can&#039;t figure out how to get this answer, I feel like a complete idiot. I&#039;ve taken up to Calc 2, so I&#039;m not an idiot just been a while.I have the problem..  (  n  −  1      )    2    −            (      n      −      2      )      (      n      −      1      )        2  The answer is..            (      n      −      1      )      n        2  How do I get there??  2            (      n      −      1      )      (      n      −      1      )        2    −            (      n      −      2      )      (      n      −      1      )        2    …I&#039;m so lost..

hopeloothab9m · Accepted Answer

You&#039;re so close; the step you are missing is:  2            (      n      −      1      )      (      n      −      1      )        2    −            (      n      −      2      )      (      n      −      1      )        2    =            (      n      −      1      )      [      2      (      n      −      1      )      −      (      n      −      2      )      ]        2    =            (      n      −      1      )      [      2      n      −      2      −      n      +      2      ]        2    =  …

Algebra Fraction Problem - Variable I honestly can't figure out how to get this answer, I feel like

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