11-12-2019
Mathematics

contestada

5) Is 3 a zero (or root) of f(x) = x3 - 9x2 + 11x + 21?

Respuesta :

MathPhys MathPhys

11-12-2019

Answer:

Yes

Step-by-step explanation:

f(x) = x³ − 9x² + 11x + 21

f(3) = (3)³ − 9(3)² + 11(3) + 21

f(3) = 27 − 81 + 33 + 21

f(3) = 0

Answer Link

Otras preguntas

Is this relation a function? Justify your answer.

write as a power function. The energy, e, produced in a nuclear reaction is proportional to the mass, m, with a constant of variation being c^2, the square of t

Due to a fire at ABC Software Solutions, all documentation for a product is destroyed just before it is delivered. What is the impact of the resulting lack of d

Why is it useful for historians to base certain studies on the anaylasis of historical themes

please find it and ignore the writing from pen

Are the equations 5x=3-x and 5x=-x+3 equivalent?

i need help with this pleaseee who ever can do it pls i love u

Dialouge writting between two friends about recent visit to hill station?

Please help me!!!!!!

Some animals that are scavengers can eat bacteria-laden meat that would harm humans. Which of the following best explains why these bacteria would harm a human,