jonellelynn
jonellelynn jonellelynn
  • 23-03-2016
  • Mathematics
contestada

21x^3 + 6x^2 - 28x - 8 factor this expression with work please?

Respuesta :

willofthemaster willofthemaster
  • 23-03-2016
21x^3+6x^2-28x-8
(21x^3+6x^2)-(28X+8)
3x^2(7x+2)-4(7x+2)
3x^2-4=0 and 7x+2=0
Answer Link
Exvited
Exvited Exvited
  • 23-03-2016
[tex]21x^3 + 6x^2 - 28x - 8 \\ \\ 3x^2 (7x + 2) - 4(7x + 2) \\ \\ (7x + 2)(3x^2 - 4) \\ \\ [/tex]

The final result is: (7x + 2)(3x² - 4).
Answer Link

Otras preguntas

How many pairs of whole numbers have a sum of 40
Healthy bodies can come in a variety of shapes and sizes. How would changes in the types of bodies used in advertisements affect the health choices of the gener
Carbon atom is tetravalent in nature. How many hydrogen atoms can bind to one carbon atom?
Difference between response and adaption
Find the greatest common factor of 9,15, and 63
How did European voyages of Exploration lead to European empires in the Eastern Hemisphere?
The price for a particular herb is 49 cents for 6 ounces. What is the price of the herb in dollars per pound?
Acid rain is mostly a problem in the _____. Northern Hemisphere eastern United States Southern Hemisphere southern part of Europe
Suppose the radius of a circle is 8. What is its area?
The Mohs hardness scale increases linearly from 1 to 10 true or false?