а) 25b^2+10b+1=(5b+1)^2
б) 9x^2-24xy+16y^2=(3x-4y)^2
в) 1/4m^2+4n^2-2mn=(1/2 m-2n)^2
г) 10xy+0,25x^2+100y^2=(10y+0,5x)^2
д) 9a^2-ab+1/36b^2=(3a-1/6 b)^2
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а) 25b^2+10b+1=(5b+1)^2
б) 9x^2-24xy+16y^2=(3x-4y)^2
в) 1/4m^2+4n^2-2mn=(1/2 m-2n)^2
г) 10xy+0,25x^2+100y^2=(10y+0,5x)^2
д) 9a^2-ab+1/36b^2=(3a-1/6 b)^2