Respuesta :

(5x+10)/(x²-x-6)

1) 5x+10 = 5(x+2)

2) x² - x - 6 = (x+2)(x-3)              6 = -3*2, -1=-3+2

(5x+10)/(x²-x-6) = 5(x+2)/5(x+2)

As we can see greatest common factor is C. x + 2.

Answer:

The GCF of given rational expression is x+2

C is correct.

Step-by-step explanation:

Given: [tex]\dfrac{5x+10}{x^2-x-6}[/tex]

Here we have rational expression. We need to find the GCF (greatest common factor) of rational expression.

Factor numerator:

[tex]5x+10\Rightarrow 5\cdot x+5\cdot 2[/tex]

[tex]5x+10\Rightarrow 5(x+2)[/tex]

Factor Denominator:

[tex]x^2-x-6\Rightarrow x^2-3x+2x-6[/tex]

[tex]x^2-x-6\Rightarrow (x-3)(x+2)[/tex]

Now we will see common factor from numerator and denominator.

[tex]\dfrac{5x+10}{x^2-x-6}\Rightarrow \dfrac{5}{x-3}[/tex]

Common factor is x+2

Hence, The GCF of given rational expression is x+2