Answer:
3x - 8
Step-by-step explanation:
6x^2 - x - 40 =(3x - 8)(2x + 5)
and
5 + 2x = 2x + 5
so
(6x^2 - x - 40)÷ (5 + 2x)
= [(3x - 8)(2x + 5)] ÷ (5 + 2x)
= 3x -8
