kaitlyn4 kaitlyn4
  • 27-02-2015
  • Mathematics
contestada

what is the zero for 2x2-7=4

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 27-02-2015
2x^2-7=4
subtract 4 from both sdies
2x^2-11=0
therefor
2x^2=11
divide by 2
x^2=5.5
square root both sdies
x=-2.345 or 2.345
Answer Link
Panoyin
Panoyin Panoyin
  • 28-02-2015
2x² - 7 = 4
      +7  +7
      2x² = 11
        2      2
        x² = 5 1/2
         x = √5 1/2
Answer Link

Otras preguntas

Which is a military factor that led to the colonial victory in the Revolutionary War?
How do attitudes about social class distinctions affect the narrator's viewpoint in Passage 1? The narrator is surprised that Mrs. Fairfax talks about keeping s
how can globalization cause a pandemic? explain in 3 to 4 sentences
what technique makes the two excerpts effective when used together? A. the use of credibilityB. the appeal to emotionC. the use of counterclaims D. the appeal o
Based on the cell theory, which of the following is true a All living and nonliving things are made of cells. b All cells are too small to be seen with the n
Who is Billie Jo’s Ma at the Christmas dinner
What is the measure of DBE? A. 1200 B. 60° C. 1800 D. 140° E. 1000
Juan picked 67 oranges. He wants to make as many full pitchers of orange juice as he can make. It takes 7 oranges to make a full pitcher. How many oranges will
A quadrilateral has vertices A(3,0),B(-4,4),C(-7,0) and D(-3,-5).Find the midpoints coordinates of each sides
just got these AIR bethlehems 11's