Ответ:
25y^2+2y+1/25
49x^2+28x+4
(25y^2-30xy+9x^2)
(25x^2-80xy+64x^2)
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Ответ:
25y^2+2y+1/25
49x^2+28x+4
(25y^2-30xy+9x^2)
(25x^2-80xy+64x^2)