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how to solve s/s+2+s=5s+8/s+2

2007-11-28 10:26:27 · 3 answers · asked by Tiana S 1 in Science & Mathematics Mathematics

3 answers

Start by combining like terms:
4s+(8-s)/(s+2)=0
Then Multiply by s+2
-4s^2+32s+8-s=0
-4s^2+31s+8=0
Use the Q.F.
s= [-31 +/- sqrt(31^2+128)]/-8
s= (31 -/+ 33)/8
s= -1/4 or 8

2007-11-28 10:34:59 · answer #1 · answered by someone2841 3 · 0 1

s/s+2+s=5s+8/s+2
1 + 2 +s = 5s + 8/s + 2
1 = 4s + 8/s
4s -1 + 8/s = 0
4s^2 - s + 8 = 0
That equation has no real solutions. Were you asked to solve over the complex numbers or possible could you have missed a set of parentheses?
Possibly:
s/(s+2)+s=5s+8/s+2

2007-11-28 10:39:49 · answer #2 · answered by Peter m 5 · 0 0

let's start by simplifying
s/s+2+s=5s+8/s+2
becomes
1+2+s=5s+8/s+2
1=5s+8/s-s
1=4s+8/s
1=4s/s+8/s
1=4+8/s
-3=8/s
-3s=8
s=8/-3

hope this helps!

2007-11-28 10:35:59 · answer #3 · answered by car 3 · 0 0

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