[tex]\dfrac{(3x^2-9x)}{(x^2-25)}[/tex]
What is rational function?
A rational function is defined as a polynomial divided by a polynomial.
What are Fractions?
Fractions is defined as a numerical value that represents a portion of a whole is used to represent fractions. A fraction is a component or section taken from a whole, which can be any number, a certain amount, or an object.
[tex](\dfrac{x-3}{x+5})(\dfrac{3x}{x-5} )\\[/tex]
[tex]\dfrac{(x-3)(3x)}{(x+5)(x-5)}[/tex]
Used formula a² - b² = (a + b)(a - b)
[tex]\dfrac{(3x^2-9x)}{(x^2-5^2)}[/tex]
[tex]\dfrac{(3x^2-9x)}{(x^2-25)}[/tex]
learn more about rational function here:
brainly.com/question/20850120
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