SarayahN740304 SarayahN740304
  • 03-11-2022
  • Mathematics
contestada

x^2-18x-57=6 solve each equation by completing the square

Respuesta :

MeridithO590729 MeridithO590729
  • 03-11-2022
[tex]x^2-18x-57=6[/tex][tex]x^2-18x+81-81-57=6[/tex][tex](x^2-18x+81)-81-57=6[/tex][tex](x-9)^2=6+57+81[/tex][tex](x-9)^2=144[/tex][tex]\sqrt[]{(x-9)^2}=\sqrt[]{144}[/tex][tex]x-9=\pm12[/tex][tex]x=12+9=21[/tex][tex]x=-12+9=-3[/tex]

x=-3

x=21

Answer Link

Otras preguntas

- 5/8 ÷ (- 1/4) can some one help it has to be a fraction or a mixed number
What is a solution called when it contains as much solute as it can possibly hold at a given temperature?
An endangered seal species consists of a single population. An earthquake divides its habitat, creating one large population of about 2,000 individuals and anot
The end of the stone age witnessed the change from hunter-gatherer societies to agricultural societies. This led to the rise of civilization. What societal chan
(MC)Which of these resulted from the Holocaust?
The purpose of the Department of Defense is to __________. A. investigate national threats B. enforce laws in a nation C. set procedures and standards for th
pls help me answer this quickly!!
Scientific theories have strod the test of time and will not change
What is the name of the helmet of american soldiers during ww2?
Helppppp Me Please!!!