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ArTFis Group Title

How do you solve for x? square root of 3x + 11 = square root of 6x + 3

  • one year ago
  • one year ago

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  1. ArTFis Group Title
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    \[\sqrt{3x+11} = \sqrt{6x+3}\]

    • one year ago
  2. mathstudent55 Group Title
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    Square both sides to get rid of square roots.

    • one year ago
  3. geerky42 Group Title
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    • one year ago
  4. mathstudent55 Group Title
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    Then solve like you'd solve a regular equation. Finally, you must check all answers because squaring equations may introduce extraneous solutions.

    • one year ago
  5. mathstudent55 Group Title
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    |dw:1360474985945:dw|

    • one year ago
  6. mathstudent55 Group Title
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    |dw:1360475018083:dw| Now check the solution in the original equation.

    • one year ago
  7. ArTFis Group Title
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    I understand. Thank you sir. I'll keep in mind to study and further learn this.

    • one year ago
  8. agent0smith Group Title
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    "you must check all answers because squaring equations may introduce extraneous solutions." particularly important... and it's good to check your work in this manner, even when extraneous solutions aren't possible.

    • one year ago
  9. mathstudent55 Group Title
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    Good attitude. That's how you learn. You're welcome.

    • one year ago
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