Ответ:
9m²-15mn = 3m(3m-5n)
2c-2d+xc-xd = 2(c-d)+x(c-d) = (c-d)(2+x)
Объяснение:
а) 9m2-15mn=3m(3m-5n)
b) 2c-2d+xc-xd= (2c-2d+xc-xd)= 2(c-d)+x(c-d)=
=(2+x)(c-d)
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Ответ:
9m²-15mn = 3m(3m-5n)
2c-2d+xc-xd = 2(c-d)+x(c-d) = (c-d)(2+x)
Объяснение:
а) 9m2-15mn=3m(3m-5n)
b) 2c-2d+xc-xd= (2c-2d+xc-xd)= 2(c-d)+x(c-d)=
=(2+x)(c-d)