girlsrock5495 girlsrock5495

09-04-2014
Mathematics

contestada

Help me factor the trinomial completely

-r^2+6r-9

Respuesta :

crisforp crisforp

09-04-2014

-r^2+6r-9 = - ( r^2 - 6r + 9) = - ( r - 3)^2;

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