Answer:
[tex](6x-5)(2x+3)[/tex]
Step-by-step explanation:
The numbers that multiply to give [tex]a\cdot{c}=12\cdot{-15}=-180[/tex] yet add to give [tex]b=8[/tex] are 18 and –10.
[tex]12x^{2}+8x-15\\12x^{2}+18x-10x-15\\6x(2x+3)-5(2x+3)\\(6x-5)(2x+3)[/tex]
