Question

Want Brainliest? Get this correct Which of the following is the product of the rational expressions shown below?

Answer 1

Answer: Choice D   $\frac{2x^2}{x^2-x-20}$

We multiply the numerators together to get x*2x = 2x^2 as the numerator for the answer.

The denominators pair up and multiply to get (x-5)(x+4) = x^2+4x-5x-20 = x^2-x-20. You can use the distributive property, FOIL, or the box method to expand out (x-5)(x+4)

So that's how we end up with (2x^2) all over (x^2-x-20) as the answer.