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  1. anonymous
    • one year ago
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    PLS MEDAL AND FAN

  2. anonymous
    • one year ago
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    @tkhunny

  3. anonymous
    • one year ago
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    @vera_ewing pleaseeeeeeeeeeeeeeee

  4. tkhunny
    • one year ago
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    What say you? Where does it go horribly wrong?

  5. anonymous
    • one year ago
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    I have no idea. A or B?

  6. tkhunny
    • one year ago
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    Never "Completed the Square"? You'll have to follow the algebra and see. Hint: \(r + s^{2} \ne (r+s)^{2}\) - generally.

  7. anonymous
    • one year ago
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    I DONT HAVE A SINGLE IDEA HOW TO DO THIS.

  8. misty1212
    • one year ago
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    wow what a mean question !!

  9. misty1212
    • one year ago
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    you have to look at every single line to see where the mistake is made and even then it is confusing because they corrected in in the end

  10. tkhunny
    • one year ago
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    It's just completing the square. It's not a difficult thing. You should have this skill unless you haven't been paying attention in class.

  11. misty1212
    • one year ago
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    we can take them step by step if you like, it really has nothing to do with completing the square, not to disagree with @tkhunny

  12. anonymous
    • one year ago
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    I'm helping my daughter mate.... @tkhunny

  13. tkhunny
    • one year ago
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    Disagree, if you wish, but it is EXACTLY completing the square. That is where the Quadratic Formula comes from.

  14. misty1212
    • one year ago
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    yes i know that, i mean this question has nothing to do with completing the square, they are only asking you to find a typo it is copy editing is all, has nothing to do with the math involved

  15. misty1212
    • one year ago
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    it is like "find the difference between these two pictures" don't think about math, just find one line where they copied something different than the previous line

  16. anonymous
    • one year ago
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    C? Ugh. I don't know.

  17. misty1212
    • one year ago
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    step 6 \[x+\frac{b}{2a}=\sqrt{\frac{-c}{a}+\left(\frac{b}{2a}\right)^2}\] step 7 \[x=-\frac{b}{2a}+\sqrt{\frac{-c}{a}+\left(\frac{b}{\color{red}{4a}}\right)^2}\]

  18. misty1212
    • one year ago
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    it is just a typo, has nothing whatsoever with the quadratic formula, completing the square, any math at all just a simple typo for you to find

  19. anonymous
    • one year ago
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    So d?

  20. misty1212
    • one year ago
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    what makes it worse it it was rectified in the next step, so the actual formula is correct

  21. misty1212
    • one year ago
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    yeah D

  22. misty1212
    • one year ago
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    if this is the math your daughter is doing, find her another school

  23. tkhunny
    • one year ago
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    Try again. If you complete the square, and follow the process, you will detect any typo. Seriously, this is a legitimate math question. The solution is simple and more rational if you treat it so. The FIRST error is IN step 6, not after it. If you had completed the square properly, you would have seen it.

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spraguer (Moderator)
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