b) 64 – 8y^3.
b) 64 – 8.
b) 64 – 8y3 = 43 – (2y)3 = (4 + 2y)(4 – 2y).
b) 64 – 8.
b) 64 – 8y3 = 43 – (2y)3 = (4 + 2y)(4 – 2y).