vzamudio151 vzamudio151

27-06-2016
Mathematics

contestada

which of the following is an X-intercept of the function f(X)=X^3-5X^2-8X+48

Respuesta :

Edufirst Edufirst

07-07-2016

You have to searh the x values that make f(x) = 0

Factoring this equation is very difficult.

You can divide by x+3 and you will find that the equation can be factored as

(x+3)(x-4)^2

That means that x = -3 and x = 4 make f(x) = 0

Then the points are (-3,0) and (4,0).

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