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 are two reasons why Hunter edjucation is important? 30 pts
how to Determine the domain of the relation shown in a table
two sign of mental/emotional and socal stress
PLEASE HURRY I NEED HELP SOS!!!!!!!! (10 POINTS)solve sinø+1=cos2ø on the interval 0≤ø<2π
Sandy drives in town at a rate of 25 miles per hour. It takes her 15 minutes to drive to the store. How far is it to the store?
You are a scientist working on increasing the efficiency of appliances to waste less electricity. You are running experiments measuring the input, output, and w
PLZZZZ HELPPPP PROBABILITY!!!
Question 23 refers to the following poem.WHY IS THE BOAT WHISTLING?LostDesolate and loneAll night long on the lakeWhere fog trails and mist creeps,The whistle o
Which of the following elements is most likely to form a +1 charge?ClMgNaLi
331 students went on a field trip six buses were filled and 7 students traveled in cars how many students were in each bus?