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

what did ronald regan promise if he was elected
There is no country that has complete control over the atmosphere. True False
Multiply. Write your answer in simplest form. 4 1/6 x 6 =
Please help me ASAP. Many Thanks
What are some measures of center and spread that you can find from a dot plot? How can making a dot plot help you visualize a data distribution?
Is the following passage capitalized correctly? Jim Hawkins is the main character in the book Treasure Island. The pirate Long John Silver befriends hawkins.
By what percent will the product of two numbers increase if one of them is increased by 30% and the other is increased by 20%?
what is the chemical equation for nicotine?
Volunteering in political campaigns and joining special interest groups are two ways that A. Texans can participate in government B. Government leaders can lear
The boss made a schedule change. For some reason, the boss made a schedule change. A. inverted the subject-verb order B. changed sentence to a compound senten