Seudónimo Seudónimo
  • 22-06-2018
  • Mathematics
contestada

What value is added to both sides of the equation x2 − 6x = 10 in order to solve by completing the square?

−3
3
6
9

Relax

Respuesta :

gmany
gmany gmany
  • 22-06-2018
[tex]x^2-6x=10\\\\x^2-2\cdot x\cdot3=10\ \ \ |+3^2=9\\\\\underbrace{x^2-2\cdot x\cdot3+3^2}_{(a-b)^2=a^2-2ab+b^2}=19\\\\(x-3)^2=19[/tex]

Answer: 9

Answer Link

Otras preguntas

find box given volume?
What is the answer for 13y-2b= 15y?
help me question in atachments
Write an algebraic expression for the phrase. 5 times the sum of p and r
Which of the following questions must be answered during the prewriting stage? a. in what order should you present your facts and ideas? b. what is important
Three sources/ references for compare/ contrast childhood vs adulthood essay
The ratio the height of a bonsai ficus tree to the height of a full size ficus tree is 1:9. The bonsai ficus is 6 inches tall. What is the height of a full size
A model airplane flies 18 feet in 2 seconds. what is the airplanes speed and miles per hour? round your answer to the nearest hundredth
Most "fad" diets do not include:
The cost to rent a paddleboat at the city park includes an initial fee of $7.00, plus $3.50 per hour. Which equation models the relationship between the total