SOLUTION: Pleaase help me solve, they are fractions, can't find the underline x + 3 x^2-1 x-1

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Question 274215: Pleaase help me solve, they are fractions, can't find the underline

x + 3
x^2-1 x-1
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
x/(x^2-1) + 3/(x-1)
=(x+3(x+1))/(x-1)(x+1) LCD=(x-1)(x+1)
=(x+3x+3)/(x-1)(x+1)
=(4x+3)/(x^2-1)
.
Ed