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

Plz help and hurry How does America view herbal medicines differently than places like China and Europe do? What does the author think should be done about that
which statement about the use of independent variable in controlled experiment is correct
Becasue squid wash up on shore scientists can study them. do i need to put a comma or is my sentence wrong???
The interactions of organizations are determined by _____. Growth Quality of Life Structure Sustainability
Essay on a book I enjoyed reading in not less than 350 words​
help pls factory this step by step ײ+x(x+1)(x+2)+(1+x)​
Ivan chases a goat for 41 seconds. He runs at 7 meters per second. How far does he go?
Please help I’m begging I have to get this in by tonight
Anne Frank- Formulate one way that Anne expresses a message of hope for a better future.
What is the specific heat capacity of copper metal if 25.00 g loses 18 °C, when the metal is placed in 15 g of water and the water temperature rises 2.8 °C?