zayzaybobo zayzaybobo
  • 22-10-2018
  • Mathematics
contestada

What are the solution(s) of x^2-4=20?

Respuesta :

gmany
gmany gmany
  • 25-10-2018

[tex]x^2-4=20\qquad|+4\\\\x^2=24\to x=\pm\sqrt{24}\\\\x=-\sqrt{4\cdot6}\ \vee\ x=\sqrt{4\cdot6}\\\\x=-2\sqrt6\ \vee\ x=2\sqrt6[/tex]

Answer Link

Otras preguntas

The cost of 1 cup is $10. IF the cups come in sets of 5 and I have $170, how many cups I buy?
The perimeter of a certain sqaure is 12 inches. Find the area of the sqaure in square inches​
Carlos is building a screen door. He height of the door is 1 foot more than twice the width. What is the width of the door if the height is 7 feet?
reasons for colonization
what did the two frogs do in Aspire to inspire story​
Help me please Why is trade one of the major causes of cultural diffusion? A. Traders can show new inventions to a country. B. Trade is controlled by countr
A screwdriver is a simple machine called a?
instructure.com/courses/50421/quizzes/1144426/take/questions/6205810 ever Log in Meet 2020-2021-school- Canarelli Middle Sc... s hybrib bell schedule The data i
what is ricin? What are the differences between ricin and anthrax?
successfulness of the competition policy in South Africa