2 6a 9 )= 3 4a 6 July 8, 2019 16 32 64 128 2) (4a ^ 2 - 1)/(a ^ 2 - 9) / ((6a + 3)/(a + 3)) (4a ^ 2 - 1)/(a ^ 2 - 9) / ((6a + 3)/(a + 3)) 2 3a -4 6 на 2 3 2 6a-0 2(3a-9)=-0 5(-2a+6)
