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anonymous

  • one year ago

Can someone tell me how you factor this for a medal?

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  1. anonymous
    • one year ago
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    Factor 3x^2y^2 - 2xy^2 - 8y^2

  2. anonymous
    • one year ago
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    (x+2y)(3x-4y)

  3. MrNood
    • one year ago
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    that is not correct the first expansion of that would give 3x^ as a term - but there is no such term in the expression

  4. MrNood
    • one year ago
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    @ImaGuest This is a good reason why you should not accept direct answers You have no idea of the competence of those answering - MANY answers here are just WRONG

  5. Plasmataco
    • one year ago
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    lol

  6. anonymous
    • one year ago
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    I know, thats why I said "tell me how you factor...". I usually don't accept direct answers anyways :)

  7. Plasmataco
    • one year ago
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    are you sure there is a 3x^2y^2?

  8. MrNood
    • one year ago
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    \[3x ^{2}y ^{2} - 2xy ^{2} - 8y ^{2}\]

  9. Plasmataco
    • one year ago
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    because that is kinda complicated...

  10. Plasmataco
    • one year ago
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    ohhhhh.

  11. Plasmataco
    • one year ago
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    well. what do you do first?

  12. Plasmataco
    • one year ago
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    there is y^2 in every term, so you can factor that out.

  13. MrNood
    • one year ago
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    To be a factor - the values have to appear in every term you can see y^2 is in every term - so start by making that a factor

  14. anonymous
    • one year ago
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    Yeah, I'm positive.

  15. Plasmataco
    • one year ago
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    you will get y^2(3x^2-2x-8)

  16. Plasmataco
    • one year ago
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    now. how do you factor 3x^2-2x-8?

  17. MrNood
    • one year ago
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    @Plasmataco you should let @ImaGuest do the work 0 it's his question

  18. anonymous
    • one year ago
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    @MrNood I would if I could, and if I could I wouldn't be on this site.

  19. anonymous
    • one year ago
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    I wouldn't have made this thread if I knew what to do

  20. Plasmataco
    • one year ago
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    (3x+4)(x-2)

  21. Plasmataco
    • one year ago
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    so, your answer would be y^2(3x+4)(x-2)

  22. anonymous
    • one year ago
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    Ok but I want to know how to factor this.

  23. Plasmataco
    • one year ago
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    ok.

  24. anonymous
    • one year ago
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    A direct answer is fine, but I need to show my work

  25. Plasmataco
    • one year ago
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    I know. I'll explain.

  26. anonymous
    • one year ago
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    And if you could walk me through it, I would appreciate it

  27. Plasmataco
    • one year ago
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    when you factor a ax^2+bx+c,

  28. Plasmataco
    • one year ago
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    waaaait. im explaining, I like to give the answer, then explain.

  29. MrNood
    • one year ago
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    you have the answer above y^2 (3x+4)(x-2) now try the next similar question

  30. MrNood
    • one year ago
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    9 out of 10 posters will leave as soon as you give th eanswer

  31. Plasmataco
    • one year ago
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    when you factor, you look at a. if it's 1, you automatically get into a format of (x+?)(x+?)

  32. anonymous
    • one year ago
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    Well I didn't leave. What does that make me?

  33. Plasmataco
    • one year ago
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    ? wat, im talking to Mr.nood

  34. Plasmataco
    • one year ago
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    understand so far?

  35. MrNood
    • one year ago
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    you didn't explain yet about taking y^2 out as a factor

  36. Plasmataco
    • one year ago
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    ok. when every term has a common factor, you can bring it out.

  37. Plasmataco
    • one year ago
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    say you have 2y-4, 2 is a common factor, therefore, you can say 2(y-2)

  38. Plasmataco
    • one year ago
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    got it?

  39. Plasmataco
    • one year ago
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    now. back to the second part...

  40. MrNood
    • one year ago
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    so what are you left with when you take y^2 from the original equation @ImaGuest ?

  41. anonymous
    • one year ago
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    Nah, Im still here. Sorry, someone was at the door.

  42. Plasmataco
    • one year ago
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    its fine, look above. do you get it so far?

  43. anonymous
    • one year ago
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    Yeah, so far I do.

  44. Plasmataco
    • one year ago
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    ok. whenever you factor with something like the second part, you always want to end up like (ax+b)(cx+d), a and c can be one.

  45. Plasmataco
    • one year ago
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    I'll give you an example, that's the easiest way to teach you.

  46. anonymous
    • one year ago
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    Alright

  47. Plasmataco
    • one year ago
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    when you factor Y^2+3Y+2, you factor into (Y+2)(Y+1).

  48. Plasmataco
    • one year ago
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    notice how 1*1=1 in the first term, 1+2=3, in the middle term and 1*2=2 in the third term

  49. Plasmataco
    • one year ago
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    that's how you want to factor every thing, it's like a puzzle.

  50. Plasmataco
    • one year ago
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    hello?

  51. anonymous
    • one year ago
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    I'm here.

  52. Plasmataco
    • one year ago
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    ok. look above.

  53. Plasmataco
    • one year ago
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    see if you get it.

  54. anonymous
    • one year ago
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    Yeah, I just finished reading them literally a few seconds before you said "hello?"

  55. Plasmataco
    • one year ago
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    you get it?

  56. anonymous
    • one year ago
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    Yeah I do. Thanks, you were of big help!

  57. Plasmataco
    • one year ago
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    no problem.

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