maritzacabrera999 maritzacabrera999
  • 21-11-2019
  • Mathematics
contestada

Find the value of x that makes the equation true.
a. 9/x-5=x-8/x
​

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 26-12-2020

9514 1404 393

Answer:

  x = 2 or 20

Step-by-step explanation:

Cross-multiplying gives you the quadratic ...

  9x = (x -8)(x -5)

Putting this in standard form, you have ...

  x^2 -22x +40 = 0

Factoring, it becomes ...

  (x -2)(x -20) = 0

The solutions are the values of x that make the factors be zero:

  x = 2  or  x = 20

_____

Comment on the graph

The equation is true when the difference between the expressions is zero.

Ver imagen sqdancefan
Answer Link

Otras preguntas

which is the area of a circle with a radius of 2 units ?(use 3.14 for pie)
The donuts in the bakery window looked old and stale. What is the verb
How did the Chinese government react to demands for democratic reform?
What historic claim do both Palestinians and Jews make to the land of Palestine?
which is the area of a circle with a circumference of 37.68 units (use 3.14)
Would Charles I have had a different fate if he had been king of another country in western or central Europe? Why or why not?
How can you narrow down ideas for a topic?
When listing the levels of organization in organisms from smallest to most complex, which level is just below organs in complexity? cell organism organ system t
What were some of the matters covered by canon law?
how many solutions are there to the equation 12x 6=5x