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LinuxCharmd Group Title

Solve: 8x - y = -6 and xy = 9

  • 2 years ago
  • 2 years ago

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  1. 2bornot2b Group Title
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    \[x=9/y\] Putting the above value of x in the first equation \[72/y-y=-6\implies 72-y^2=-6y\implies y^2-6y-72=0\]

    • 2 years ago
  2. 2bornot2b Group Title
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    I hope you can solve the quadratic equation....

    • 2 years ago
  3. LinuxCharmd Group Title
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    So I just do the quad form and then it should give me my answer for Y?

    • 2 years ago
  4. LinuxCharmd Group Title
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    Awesome, thanks

    • 2 years ago
  5. 2bornot2b Group Title
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    Yes, you will get two values of y, by solving the above quadratic equation. Now put each of them on any one of your equations, and you will get two values of x. So that's the solution, two values of x and two values of y.

    • 2 years ago
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    You are welcome! It also must be mentioned here, that the solutions must be written in such a way such that the reader can make out from your writing which x is corresponding to which y.

    • 2 years ago
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