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anonymous

  • one year ago

Solve the equation the square root of the quantity x plus 4 minus 3 equals 1 for the variable. Show each step of your solution process.

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  1. anonymous
    • one year ago
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    |dw:1436741205393:dw|

  2. freckles
    • one year ago
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    try isolating the square root part by first adding the 3 on both sides

  3. freckles
    • one year ago
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    you should then be ready to square both sides in order to cancel out the square root part

  4. marihelenh
    • one year ago
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    \[\left( \sqrt{x+4} \right)^{2}=\left( 4 \right)^{2}\]

  5. anonymous
    • one year ago
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    so the answer would be x=0?

  6. anonymous
    • one year ago
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    @freckles

  7. marihelenh
    • one year ago
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    If you were to do the previous equation, you would get \[x+4=16\]

  8. marihelenh
    • one year ago
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    Then just subtract across and get x and finish with a check.

  9. anonymous
    • one year ago
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    oh yes i forgot to square it thanks

  10. anonymous
    • one year ago
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    so x=12

  11. marihelenh
    • one year ago
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    Yep! And it checks.

  12. anonymous
    • one year ago
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    thank you @marihelenh

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