2 5y 4 1-(8 5y 6 8)=8 1 July 8, 2019 16 32 64 128 2 5y 4 1 8 5y 6 8 8 1 - 2 5(4y + 2) + 8(2 - 1 25y) (4 5-y) *5 8=8 7 2 5 6 8 = 1 5 y
