Сократите дробь а) 28a^6b^8c^3 / 36a^7b^8c b) 9x^2-y^2 / 9x^2+6xy+y^2

Question

Сократите дробь
а) 28a^6b^8c^3 / 36a^7b^8c
b) 9x^2-y^2 / 9x^2+6xy+y^2

Answer 1

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