Вопрос школьника по предмету Математика
выполните за скобки наибольший общий делитель коэффициентов:
12а+20b 30m+40n 18a+45b 49m+21n 15m+25n
16c+24d 48x+60y 28c+63d
Ответ учителя по предмету Математика
12а+20b =4(3а+5в)
30m+40n =10(3m+4n)
18a+45b=9(2a+5b)
49m+21n =7(7m+3n)
15m+25n=5(3m+5n)
16c+24d=8(2c+3d)
48x+60y =12(4x+5y)
28c+63d=7(4c+9d)
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