## Elementary Algebra

$15x^{2}+17x-4$
Multiplying each term of the first parenthetical expression with the entire of the second parenthetical expression, we obtain: $(5x-1)(3x+4)$ =$5x(3x+4)-1(3x+4)$ =$15x^{2}+20x-3x-4$ =$15x^{2}+17x-4$