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5. Multiple Choice What are all the rational
zeros of f(x) = – x2 – 17x – 157
A -3, - 1,5
B - 3, 1, 5
© -5, -1, 3
D – 5, 1, 3
E – 1, 3, 5

Respuesta :

Answer:

The answers are not correct

Step-by-step explanation:

For finding the rational zeros of this function, we need to resolve this equation:

[tex]-x^{2} -17x-157 = 0\\[/tex]  

multiplying by -1 on both sides

[tex]x^{2} + 17x + 157 = 0[/tex]

And now we can use the general solution of a cuadratic equation:

[tex]x = \frac{-b+\sqrt{b^{2}-4ac } }{2a}[/tex]

Where

a = 1

b = 17

c = 157

This equation does not have real solutions

Maybe you could verify if the function is written correctly