kinkinshute kinkinshute
  • 26-03-2021
  • Mathematics
contestada

Solve x2 + 8x − 3 = 0 using the completing-the-square method

Respuesta :

ponton
ponton ponton
  • 26-03-2021

Answer:

[tex]\sqrt{19} - 4 \\or\\ - \sqrt{19} - 4[/tex]

Step-by-step explanation:

[tex]x^2+8x-3=0 \Rightarrow x^2+2.4.x+16-19=0\\\Rightarrow (x+4)^2=19 \\Then\\ x+4 = \sqrt{19} \Rightarrow x= \sqrt{19} - 4 \\or\\x+4 = -\sqrt{19} \Rightarrow x= -\sqrt{19} - 4[/tex]

Answer Link

Otras preguntas

Witch type of group discussion requires a lot of active participation from the audience?
The dot plots below show the scores for a group of students who took two rounds of a quiz: Which of the following inferences can be made using the dot plot? Th
I need the answer for number 75.
The first step in surface coal mining is
The general willingness of consumers to purchase a product at various prices is __________.
3/4 ÷ 7/15 plz help divide
Which of the following has been the result of clean water supplies, greater availability of medicines, and improved vaccines? A Lower crude birthrates B. Fewer
Visual learning, local learners ,physical learners and auditory learners how can you use this information to help you success math
1- 10(1+3b)=-20 2- -6(1-5v)=54 PLEASE HELP 20 POINTS There is 2 problems there!!!
My mothers voice was like a cool dark room in summer peacefull smoothing quite identify the type of figurative language