с²-10с+25;b²-16b+64;d²-18d+81;y²+2y+1;4+4p+p²;16-8x+x²;36+12a+a²;49-14b+b²;100+20y+y²;c²+4cp+4p²;4a²-12ac+9c²;25x²+20xy+4y²;36p²-12pm+m²;9x²+30xy+25y²;49a²+28ay+4y²(переобразуйте трёхчлен в квадрат двучлена, даю 55 баллов!!!!)
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