Answer:
[tex]12x^{2}-35x-13[/tex]
Step-by-step explanation:
[tex](4x-13)\times (3x+1)[/tex]
[tex]4x(3x+1)-13(3x+1)=12x^{2}+4x-39x-13[/tex]
Collecting like terms and re-arranging in terms of [tex]ax^{2}+bx+c[/tex]we obtain