dean3Kylaciemar dean3Kylaciemar

29-09-2016
Mathematics

contestada

What is the solution to the rational equation x over x squared minus 9 minus 1 over x plus 3 equals 1 over 4x minus 12 ?

x = -9 over 7

x = 15

x = 15 over 7

x = 9

Respuesta :

HomertheGenius HomertheGenius

01-10-2016

x / ( x² - 9 ) - 1/ ( x + 3 ) = 1 / ( 4 x - 12 )
Restrictions : x ≠ +/- 3
x / ( x - 3 ) ( x + 3 ) - 1 / ( x + 3 ) = 1 / 4 ( x - 3 ) / · 4 ( x + 3 ) ( x - 3 )
4 x - 4 · ( x - 3 ) = x + 3
4 x - 4 x + 12 = x + 3
x = 12 - 3
Answer: D ) x = 9

Answer Link

Otras preguntas

Who was the biggest supporter of the populist party?

What should someone who is considering moving to your city know?

How many significant figures does 0.0002 g

Exercise 1/ Circle the correct answer b. your c. his c. its 1.(you) car is new. a. my 2.(Jasmine). house is very nice. a. his b. her 3. (your brother) hair is l

PLEASE HELPP!!!!!!!!

help please 10 points

story - The Beggar Character of Lushkoff about his behivours. how he change at the last

Which of these expressions is the simplified form of the expression (StartFraction sine (x) Over 1 minus cosine squared (x) EndFraction) tangent (StartFraction

Seeking to influence a politician or public official on an issue is known as what?

The citizen was told that if he crossed the boundary into the other king’s territory, he would be arrested.