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Scoateți factorul comun:
(y-6)³+(y+1)(y-6)²-(5-3y)(y-6)²


Răspuns :

(y-6)²[ (y - 6) +(y +1) - (5y - 3y)] =

(y-6)²[(y-6)+(y+1)-(5-3y)]=
(y-6)la2(y-6+y+1-5+3y)=
(y-6)la2(5y-10)