Match each trinomial on the left with its correctly factored form on the right. Some answer choices on the right will not be used .
5x³-20x²-160x
5x³-70x²-160x
5x³+20x²-160x
5x³+70x²-160x

5x(x-8)(x-4)
5x(x+8)(x-4)
5x(x-16)(x+2)
5x(x+16)(x-2)
5x(x+8)(x+4)
5x(x-8)(x+4)