factor.

6x3+5x2-18x-15

To factor 6x^3 + 5x^2 - 18x - 15, first look for any common factors among the terms. In this case, the only common factor is 1.

Next, try factoring out the greatest common factor, which is 1x.
(1x)(6x^2 + 5x - 18 - 15/x)
Next, factor the quadratic expression inside the parentheses.
(1x)(3x - 2)(2x + 3)