Gal6mera9stcr
Gal6mera9stcr Gal6mera9stcr
  • 11-06-2016
  • Mathematics
contestada

Solve the quadratic equation by completing the square. x2 + 6x + 7 = 0

Respuesta :

caylus
caylus caylus
  • 11-06-2016
Hello,

x²+2*3x+3²+7-9=0
==>(x+3)²-2=0
==>(x+3-√2)(x+3+√2)=0
==> x=-3+√2 or x=-3-√2
Answer Link

Otras preguntas

Mr. Dewalt suggested contacting a travel agent to see whether they could get a lower price. The agent found a price that was 30% lower than $2075. What was the
Three types of informational references are a. Encyclopedias, dictionaries and thesaurus c. Almanacs, atlases and thesauruses b. Atlases, almanacs, and encyclop
what is 12.7 rounded to nearest whole number?
A stable ecosystem in north america is disrupted greatly by a particular human stress. which trophic level would most likely be the first suffer?
An equilateral triangle has an area of 36 /3 in2 . What is the length of one side
What portion of the electromagnetic spectrum is most absorbed by the chlorophyll pigments in the thylakoid membr?
What are the values of x,y, and z?
Definition: he was 28th president of the united states; led the united states in world war i and secured the formation of the league of nations.
what contributed to the coming of the american revoulution
What is the formula for speed of light?