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x^3-9x^2-4x+36=0

Determine the values of x for which the function f(x)= x^2-5x-2/ 5x-3

A. is zero

B. is positive, and

C. is negative

Sagot :

Answer:

B

Step-by-step explanation:

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

according to the known condition, a = 1, b = -5-2/5 c = -3

you can input these values into the above two.