Выполните умножение дробей:
1. [tex] \frac{a ^{2}- b^{2} }{(a+b)^{2} } * \frac{5a+5b}{2a-2b} [/tex]
2. (3a-b)(2b+4a)
1. [tex] \frac{a ^{2}- b^{2} }{(a+b)^{2} } * \frac{5a+5b}{2a-2b} [/tex]
2. (3a-b)(2b+4a)
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