IAmPidgetto IAmPidgetto
  • 21-09-2016
  • Mathematics
contestada

find the value of this expression if x=4 x^2-4/x-8

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 22-09-2016
x = 4 + (x^2 - 4) / (x - 8)
x(x - 8) = 4(x - 8) + x^2 - 4
x^2 - 8x = 4x - 32 + x^2 - 4
-8x - 4x = -32 - 4
-12x = -36
x = -36/-12
x = 3
Answer Link

Otras preguntas

What are some Non-Examples of Seismology
Evaluate 6g - 8k when g=4 and k=2.8
brainlest!!!!!!!!! please help me all the choices are the same please help thx!!!!!
A regular pack of playing cards contains 2​6 red cards and 2​​​6 black cards. If you are asked to pick a card at random,what is the probability that you will ch
Why is gravity so weird?
Hello Guys! This is a question from AP Lang that I need help with. I'd appreciate it if you'd help me. “The years took all the fight out of Janie's face. For a
if the first three words are the boy is down,what are the last three words?​
Write a poem or short story using ALL of the following vocabulary words at least once. carnage pervaded Distended Obsolete Permeated
how did the outcome of the Kentucky and Virginia resolutions affect the federalists
1. This is one structure essential in propagating young treesa. Soil typeb. Shedc. Location/Sited. Box2. A place near a source of water.a. Location/Site b. Boxe