Alnaafiya Alnaafiya

03-03-2022
Mathematics

contestada

for p(x) = 5x^3-2x^2+3x-6.is x=-1 is a root of p(x)?is x=1 is a root of p(x)

Respuesta :

ganjilaya2019 ganjilaya2019

03-03-2022

Answer:

just x = 1 is a root.

Step-by-step explanation:

p(-1) = 5(-1)³ - 2(-1)² + 3(-1) - 6 = -5 - 2 - 3 - 6 = -26

so x= -1 isn't root for p(x)

p(1) = 5(1)³ - 2(1)² + 3(1) - 6= 5 - 2 + 3 - 6= 0

so x = 1 is a root for p(x)

Answer Link

Otras preguntas

the screen on brianna new phone is 2.85 centimeters long. what mixed number represents the length ofbthe phone screen

In snapdragons, there is one allele that produces red flowers and another allele that produces white flowers. Neither allele is dominant and heterozygous indivi

When is the product of two integers less than or equal to both of the two factors?

give two specific examples of how British mistreated the indigenous peoples of Australia

Derive the equation of the parabola with a focus at (−5, 5) and a directrix of y = -1.

What are 3 things engineers have developed?

According to Gibbon, in what ways has "primitive man progressed over time? what assures the author that this progress will continue?

how are simple cations and anions named ?

Can you solve this equation 13m-22=9m-6

how many significant digits are in 80,000