yvonneyvonne65 yvonneyvonne65

30-06-2015
Mathematics

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simplify the expression (x+5)(x-7)

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Аноним Аноним

30-06-2015

( x + 5 ) ( x - 7 )

( x ) ( x ) + ( x ) ( - 7 ) + ( 5 ) ( x ) + ( 5 ) ( - 7 )

x² - 7x + 5x - 35

= x² - 2x - 35.

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