Respuesta :

Answer:

[tex]\frac{2x^2}{x^2-x-20}[/tex]

Step-by-step explanation:

Let's start by multiplying across. In the numerator we have:

[tex]x * 2x = 2x^2[/tex]

In the denominator, we have:

[tex](x-5)(x+4)[/tex]

We can use foil to simplify this:

[tex](x^2-x-20)[/tex]

So, we end up with:

[tex]\frac{2x^2}{x^2-x-20}[/tex]

And our answer is choice B.