November 2021 2 7 Report

Представьте трехчлен в виде квадрата двучлена :

а) a2+2a+1;

б) x2-2x+1 ;

в) y2+10y+25 ;

г) 4-20c+25c2 ;

д) a2-6ab+9ab2 ;

е) 4x2+4xy+y2 ;

ж) 81z2-18az+a2 ;

з) 9n2+12mn+4m2 ;

и) a2b2+2ab+1 ;

к) x4-2x2+1 ;

л) y6+2y3+1 ;

м) a4-2a2b+b2 .

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