alexprestwick alexprestwick
  • 12-10-2020
  • Mathematics
contestada

Given that 7 is a zero of h(x)=x^3-7x^2-3x+21, find the other zeros.

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 12-10-2020

Answer:

x= 7    x = ±√3

Step-by-step explanation:

h(x)=x^3-7x^2-3x+21

Factor by grouping

h(x) = x^2( x-7)  -3 (x-7)

Factor out an (x-7)

h(x) = (x-7)  ( x^2 -3)

Using the zero product property

0= (x-7)  ( x^2 -3)

x-7 =0     x^2 -3 =0

x=7     x^2 =3

x= 7    x = ±√3

Answer Link

Otras preguntas

1. The block shown below is being putled to the right on a horizontal table, Which labeled vectors represent all the forces acting on the block?
Why didn't President Truman authorize a demonstration of the atomic bomb first instead of choosing to drop it on Japan?
Which is best website for english answers during online exams ? University level ?
brainliest competition Read the lines from the article that appear below. Write a statement that they all support. I Statement: Buffalos were very important to
Name the type of tissue which forms the major part of the heart and name the blood vessel which supplies this tissue with oxygen unless it is blocked by heart d
When the offspring has a new genetic variation that a government neither of us parents it is called
question:2x²-5x+3 answer:​
arrange the following in order of ionization energy, Na, Na+, C, O​
Why one won't save a document as a text file
What caused the Anasazi to change their lifestyle?[