Сократите дробь:
[tex] a) \frac{49m^{2} - n^{2} }{3mn^{2} - 21m^{2}n } = ? b)\frac{81x^{2} - 16}{16 + 72 +81x^{2} } = ?[/tex]
Сократите дробь:
[tex] a) \frac{49m^{2} - n^{2} }{3mn^{2} - 21m^{2}n } = ? b)\frac{81x^{2} - 16}{16 + 72 +81x^{2} } = ?[/tex]
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а)
б)
В условии опечатка, дожно быть 72х.