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EmmaH

  • 2 years 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
    • 2 years ago
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    how do i solve that?

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

  3. EmmaH
    • 2 years ago
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    x^2=6?

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

  5. EmmaH
    • 2 years ago
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    2.44948974278

  6. ParthKohli
    • 2 years ago
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    Now round to the nearest tenth

  7. EmmaH
    • 2 years ago
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    2.4

  8. ParthKohli
    • 2 years ago
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    Note that there is a negative sqrt too.

  9. mathstudent55
    • 2 years 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
    • 2 years ago
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    2.4,-2.4

  11. ParthKohli
    • 2 years ago
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    that is right!

  12. EmmaH
    • 2 years ago
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    thats the answer?

  13. ParthKohli
    • 2 years ago
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    Yes.

  14. Koikkara
    • 2 years ago
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    well.....is it 3??|dw:1361077277418:dw|

  15. mathstudent55
    • 2 years ago
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    Write in a set: {-2.4, 2.4}

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

  17. ParthKohli
    • 2 years ago
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    no problem :-)

  18. EmmaH
    • 2 years ago
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    :D

  19. Koikkara
    • 2 years ago
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    well, ....u guys r great...

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