Which of the following is the complete factorization of 40x3+135y3?
5(2x+3y)(4x2−6xy+9y2)
5(2x+3y)(4x2+6xy+9y2)
(2x+3y)(4x2−6xy+9y2)
5(2x−3y)(4x2+6xy+9y2)