Asked by Anonymous
Rational equation
-5/x-3 - 3/x+3=2/x^2-9
how do I solve?
-5/x-3 - 3/x+3=2/x^2-9
how do I solve?
Answers
Answered by
Wayne
multiply everything by x^2-9, which gives you:
-5(x+3)-3(x-3)=2
Have fun!
-5(x+3)-3(x-3)=2
Have fun!
Answered by
Anonymous
9(x+3)-3(x+3)=2
9x+27+3-9=2
6x-36
6x=48
x=8
Is this right?
9x+27+3-9=2
6x-36
6x=48
x=8
Is this right?
Answered by
Wayne
I apologize! I misread your equation. Multiply through by x^2 gives:
9x^2-8x-2=0. Use Quadratic Formula to get two solutions: (8+sqrt(136))/18 and (8-sqrt(136))/18. I checked, and both work!
9x^2-8x-2=0. Use Quadratic Formula to get two solutions: (8+sqrt(136))/18 and (8-sqrt(136))/18. I checked, and both work!
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