Автор - VASAPOMOSHNIK

6 номер, заранее спасибо! 10 баллов...

Ответ

Автор - oksik1970

Ответ:

1

Объяснение:

( frac{ {76}^{3}  -  {44}^{3} }{32}  + 76 times 44) div ( {130}^{2}  -  {50}^{2} ) = ( frac{(76 - 44)( {76}^{2} + 76 times 44 +  {44}^{2}  )}{32}  + 76 times 44) div ((130 - 50)(130 + 50) )= ( {76}^{2}  + 76 times 44 +  {44}^{2}  + 76 times 44) div (80 times 180 )= ( {76}^{2}  + 2 times 76 times 44 +  {44}^{2} ) div (80 times 180 )=  frac{ {(76 + 44)}^{2} }{80 times 180}  =  frac{ {120}^{2} }{20 times  {2}^{2}  times 60 times3 }  =  frac{ {60}^{2} times  {2}^{2}  }{20 times  {2}^{2}  times 60 times3 }  =  frac{60}{20 times 3}  =  frac{60}{60}  = 1

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