6 5y 3 4y July 8, 2019 16 32 64 128 6 5y 2 3 4y 5y 6 3 2 3y 4y 3 6 5y )= 2 (- 5 4y 6 7y 3 4y 1 5y 10 6xy - 4y + 6 - 9x 6y 5