Final answer:
The product of the given rational expressions is 2x^2 / (x^2- x - 20).
Step-by-step explanation:
To find the product of the rational expressions, we can multiply the numerators together and multiply the denominators together. In this case, the product is:
(x * 2x) / ((x - 5) * (x + 4))
Next, we can simplify the expression by multiplying the terms:
2x^2 / (x^2 - x - 20)
Therefore, the product of the given rational expressions is 2x^2 / (x^2 - x - 20).