srobins721 srobins721
  • 03-02-2021
  • Mathematics
contestada

what is the solution set for 2n squared +7n-9=0

Respuesta :

rorycampbell0721
rorycampbell0721 rorycampbell0721
  • 03-02-2021

Answer:

n = 1, -9/2

Step-by-step explanation:

[tex]2n^2 + 7n - 9=0[/tex]

[tex]2n^2 - 2n + 9n - 9=0\\2n (n - 1) + 9(n - 1)=0\\(n-1)(2n+9)=0[/tex]

[tex]n-1=0\\or \\2n+9=0[/tex]

[tex]n = 1, -9/2[/tex]

Answer Link

Otras preguntas

HELP ASAP !!! I dont know how to do this i really need help
Not if this correct????
https://youtu.be/Q7SnxUSiAJ8 Can you guys please comment on my video, and tell me what you guys think about it? Please y gracias. It's in Spanish btw :) Who wan
Assume that 75 was the mean test score on an exam, with a standard deviation of 4 points. What percent had scores between 67 and 75? Use the % symbol in your an
Calculate the pH of the solution: [OH-] = 1x10^-11M a.11.0 b.12.0 c.2.7 d.3.0
Please help I'll mark you as brainiest
Which of the following scenarios is an example of a concern related to ergonomics? A. Tanesha disposes of a used needle in a regular trash can. B. Dan doesn't c
what is the value of 3 in 728.36
In their rebellions of 1789 the french peasants were reacting to high costs of bread, high taxes, and
Of 300 students in the cafeteria, 180 had lunch. Write the simplified ratio of the students in the cafeteria to the students that had lunch.