2 10 5y July 8, 2019 16 32 64 128 2 5y 10 0 Y 2 5y 10 3y 2 5y 10 0 7y 2 5y 10 2y 6y 2 5y 10 )= 22 3y 2 5y 10 Y 2 5y 10 0 2 x 5y 10 2 4y 10 )= 5y 32 5y 2 5y 10 factorise 15 10 (- 2 )+ 5y 2y 2 5y 10 0 7y 10 2 5y 6 2 40 )- 5y 10 7y 2 5y 10