macymonas macymonas
  • 04-05-2020
  • Mathematics
contestada

solve x²-10x-20=0 using completing the square

Respuesta :

amanda76542 amanda76542
  • 04-05-2020

Answer:x=5+-sq45

Step-by-step explanation:

X^2-10x-20=0

-10/2=-5^2=25

x^2-10x+25=20+25

(x-5)^2=45

sq(x-5)= x-5

x-5=+-sq45

x=5+-sq45

sq= squareroot symbol

Answer Link

Otras preguntas

What are water and carbon dioxide in the cellular respiratoin reaction
Which of the following correctly describes crossing over
Freeing the slaves in the U.S. is an example of political participation during which period? Civil War Colonia Manifest Destiny Reconstruction
4. A student is creating a model of meiosis. She is trying to make sure that she includes all the aspects of the phases. Where in the model should she include t
*IT'S URGENT* <FEB and <BEF are_______.​
The box of cereal has a volume of 192 in. The area of the base is 24 in. What Is the height of the box?​
WHY IS LITERALLY EVERYONE'S PROFILE PIC AN ANIME CHARACTER?
Which operation would help solve for w? w • 5 = 55.
Which details from the passage are most clearly descriptive? Check all that apply.
(100 points) why did Europeans believe in superstitions_ 50 words