1 4 13y 3 ) 1 8 6y 9 July 8, 2019 16 32 64 128 1 4 13y 3 )+ 1 8 6y 9 1 8y = - 3 69 4/9 y+1/3y=6 3 1 8 1 5у 6 1 0 4(y-3)
