#1

can somebody help me with this

Solve the equation

x over x2 - 25 + 8 over x - 5 = 4 over x + 5

I cant solve it

Solve the equation

x over x2 - 25 + 8 over x - 5 = 4 over x + 5

I cant solve it

#2

cant help im taking algebra 1b over again next year....

#3

cant help im taking algebra 1b over again next year....

Fail.

#4

can somebody help me with this

Solve the equation

x over x2 - 25 + 8 over x - 5 = 4 over x + 5

I cant solve it

Your "over" notation doesn't work for indicating the level of division. Use parentheses and backslashes.

#5

x/x2-25 + 8/x-5 = 4/x+5

is that better

the awnsers are 5 -5 -12 -12 and -5

I plugged in -5 but im not sure if its right

is that better

the awnsers are 5 -5 -12 -12 and -5

I plugged in -5 but im not sure if its right

#6

by "x2" do you mean "2x"?

#7

by "x2" do you mean "2x"?

no x squared

#8

trying making all the denominators equal, so you can strike them out.

#9

lmao i got the answer 92...wait no

#10

x^2 - 25 factors out to x + 5 and x - 5. Multiply 8/x-5 by (x+5)/(x+5) and multiply 4/x+5 by (x-5)/(x-5). Then everything has a common denominator, so you can get rid of the denominators and just solve for x through the numerator.

#11

x^2 - 25 factors out to x + 5 and x - 5. Multiply 8/x-5 by (x+5)/(x+5) and multiply 4/x+5 by (x-5)/(x-5). Then everything has a common denominator, so you can get rid of the denominators and just solve for x through the numerator.

thank you Darkstar you just saved me from failing Algebra 2 for the year!!!

the answer s x=-5

#12

thank you Darkstar you just saved me from failing Algebra 2 for the year!!!

the answer s x=-5

Not quite. -5 would make the denominator of the expression on the right equal to 0, and division by zero is undefined.

#13

i got x = -12

x/x(sq)-25 + 8/(x-5) = 4/(x+5)

x/(x-5)(x+5) + 8/(x-5) = 4/(x+5)

divide all by (x-5)(x+5)

x + 8x +40 =4x -20

5x= -60

x = -12

x/x(sq)-25 + 8/(x-5) = 4/(x+5)

x/(x-5)(x+5) + 8/(x-5) = 4/(x+5)

divide all by (x-5)(x+5)

x + 8x +40 =4x -20

5x= -60

x = -12

*Last edited by manic at Jun 12, 2008,*

#14

nope, cause I'm out of school now.