Answer:
[tex]56x^{2}+3x-20[/tex]
Step-by-step explanation:
You can use the FOIL (first, outer, inner, last) to find the answer.
(7x - 4) · (8x + 5) = (7x · 8x) + (7x · 5) + (-4 · 8x) + (-4 * 5)
= [tex]56x^{2}+35x-32x-20[/tex]
= [tex]56x^{2}+3x-20[/tex]
