caitlinesmith00
caitlinesmith00 caitlinesmith00
  • 02-04-2017
  • Mathematics
contestada

HELP - PICTURE BELOW
Can someone please explain to me how to answer this???

HELP PICTURE BELOW Can someone please explain to me how to answer this class=

Respuesta :

rahmasaleh00
rahmasaleh00 rahmasaleh00
  • 02-04-2017
find the lowest common multiple.
thus 1/[x2+x] +1/[x2-x]=x2-x+x2+x/[(x2-x)(x2+x)]
                                    =2x2/[x4-x2]
                                    =2/[x2-1]
answer is B
Answer Link

Otras preguntas

how do u find the area of a triangle
How do I solve for x? X+6x=56
List all the commonwealth games mascots from 1982-2014
Which characteristic is shared by sonnets and haiku?
A movie starts at 7:00 pm and lasts 108 minutes. What time does the movie end?
Which expression can be used to change 75 kilometers per hour to meters per minute?
Square of the complex number (i - 2)?
Multiply these fractions (Lowest Terms) a) 2 x 3/4 b) 3 x 3/5 c) 4 x 1/3 d) 6 x 2/5 e) 1/2 x 1/4 f) 4/5 x 2/3 g) 5/6 x 3/4 h ) 1/10 x 2/3 i) 2 1/5 x 1/
Find the length of the radius of the following circle. (x + 2)2 + y2 = 10
Hassan's backyard swimming pool is 30 feet long, 20 feet wide, and 5 feet deep. There are 7.5 gallons of water in 1 cubic foot. How many gallons of water will t