JJ99
JJ99
10-06-2016
Mathematics
contestada
solve.
x/x-2+x-1/x+1=-1
Respuesta :
caylus
caylus
10-06-2016
Hello,
We suppose x≠2 and x≠1.
x/(x-2)+(x-1)(x+1)=-1
==> (x²+x-(x²-x-2x+2))/(x²-x-2)=-1
==>4x-2=-x²+x+2
==>x²+3x-4=0
==>(x+4)(x-1)=0
Sol ={-4,1} which are different of the excluded values.
Answer Link
VER TODAS LAS RESPUESTAS ( 85+ )
Otras preguntas
is 5/8 bigger or smaller than 4/6is -3/2 bigger or smaller than -4/6
Valentina purchased 200 beads for $48 to make necklaces.If she needs to buy 25 more beads , how much will she pay if she is charged the same rate?
What is 1.5x - 3y = 6
is 5/8 bigger or smaller than 4/6is -3/2 bigger or smaller than -4/6
A park has a circular are for a fountain that has a circumference of about 16 feet. What is the radius of the circular area? Round to the nearest tenth.
Light travels at the speed of approximately 3.0 × 108 meters per second. Find the time in minutes required for light to travel from the sun to Earth (an approxi
A 4.5-newton object is placed in a tank of water. If the water exerts a force of 4.0 newtons on the object, will the object sink or float?
If JK=20-x^2, KL=2-x, and JL=10 find x
what is -h+4 = -h+9????
Choose a number between 61 and 107 that is a multiple of 4,5, and 10
