Преобразуйте трёхчлен в
квадрат двучлена
d²-18d+81= ?
y²+2y+1= ?
4+4p+p²= ?
100+20y+y²= ?
c²+4cp+4p²= ?
4a²-12ac+9c= ?
9x²+30xy+25y²= ?
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