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EmmaH

  • one year ago

im really confused and tired can someone help me?Estimate the roots of the equation by graphing. Round to the nearest tenth and write in set form, such as {-1.2,3.4}. x2 - 6= 0

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  1. EmmaH
    • one year ago
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    how do i solve that?

  2. ParthKohli
    • one year ago
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    add 6 to both sides, take the square root.

  3. EmmaH
    • one year ago
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    x^2=6?

  4. ParthKohli
    • one year ago
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    Yes, now what are the square roots of 6?

  5. EmmaH
    • one year ago
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    2.44948974278

  6. ParthKohli
    • one year ago
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    Now round to the nearest tenth

  7. EmmaH
    • one year ago
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    2.4

  8. ParthKohli
    • one year ago
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    Note that there is a negative sqrt too.

  9. mathstudent55
    • one year ago
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    An equation of the form x^2 = a, a > 0 has two roots: x = sqrt(b) and x = -sqrt(b) Since you have x^2 = 6, just find the square root of 6. Then one root is the positive square root of 6 and the other root is the negative square root of 6.

  10. EmmaH
    • one year ago
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    2.4,-2.4

  11. ParthKohli
    • one year ago
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    that is right!

  12. EmmaH
    • one year ago
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    thats the answer?

  13. ParthKohli
    • one year ago
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    Yes.

  14. Koikkara
    • one year ago
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    well.....is it 3??|dw:1361077277418:dw|

  15. mathstudent55
    • one year ago
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    Write in a set: {-2.4, 2.4}

  16. EmmaH
    • one year ago
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    thank you so much my brain is shutting down bcs im tired

  17. ParthKohli
    • one year ago
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    no problem :-)

  18. EmmaH
    • one year ago
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    :D

  19. Koikkara
    • one year ago
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    well, ....u guys r great...

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