Answer: option D.Step-by-step explanation: To solve this exercise you must apply the proccedure shown below: - Apply the Distributive property (Remember that when you multiply two powers with the same base, you must add the exponents). [tex]b^m*b^n=b^{(m+n)}[/tex] - Add the like terms. Therefore, you obtain that the product is: [tex](2x^2+5x-3)(3x+7)=6x^3+14x^2+15x^2+35x-9x-21\\=6x^3+29x^2+26x-21[/tex]