запишите много член в виде квадрата суммы:

а) а^2+16а+64=а^2+........+8^2..........
б) 4а^2+12а+9=(2а)^2+..............
в) 9а^2+12а+4=...................
г) 4а^2+2а+0,25=..................
д) 0,25^2+2а+4=....................​
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