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Please help
the value -2 is lower bound for the zeros of the function below
f(x)=4x^3-12x^2-x+15
True or False

Respuesta :

wegnerkolmp2741o

Answer:

False

Step-by-step explanation:

f(x)=4x^3-12x^2-x+15

Using synthetic division

-2     4  -12   -1     15

            -8   40    -78

--------------------------

       4   -20  39  -63

Since this is not zero, this is not a lower bound

09pqr4sT

Answer:

[tex]\Large \boxed{\mathrm{False}}[/tex]

Step-by-step explanation:

[tex]\sf f(x)=4x^3-12x^2-x+15[/tex]

The zeros of the function is the values at which the function crosses the x-axis.

The value -2 is not a lower bound for the zeros of the function.

Ver imagen 09pqr4sT

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