Respuesta :

Answer:

- 1.625 and 2

Step-by-step explanation:

If you take 4 and multiply 1.625 you get 3.25 (Negative) then you multiply the 1.625 to 2 (positive) and it makes, -13.

Two numbers shown below,

When [tex]x=-0.31[/tex] , [tex]y=-\frac{4}{0.31}=-12.9[/tex]

When [tex]x=-12.68[/tex],  [tex]y=-\frac{4}{12.68} =-0.31[/tex]

System of equations :

Let us consider that one number is x and other number is y.

Given that,  two numbers multiply to 4 and add to -13

                 [tex]x*y=4\\\\x+y=-13[/tex]

Substitute [tex]y=\frac{4}{x}[/tex] in second equation.

                [tex]x+\frac{4}{x} =-13\\\\x^{2} +4=-13x\\\\x^{2} +13x+4=0\\\\x=\frac{-13 \pm \sqrt{13^{2}-16 } }{2} \\\\x=-0.31,x=-12.68[/tex]

When [tex]x=-0.31[/tex] , [tex]y=-\frac{4}{0.31}=-12.9[/tex]

When [tex]x=-12.68[/tex],  [tex]y=-\frac{4}{12.68} =-0.31[/tex]

Learn more about the system of equation here:

https://brainly.com/question/13729904