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anonymous

  • one year ago

Factor completely. 3x3 – 48x A. 3x(x – 4)(x – 4) B. 3(x + 4)(x – 4) C. 3x(x – 4)(x + 4) D. 3x(x – 16) @jagr2713

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  1. anonymous
    • one year ago
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    @ken

  2. anonymous
    • one year ago
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    @KendrickLamar2014 @jagr2713

  3. jagr2713
    • one year ago
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    hat is the largest number that divides evenly into 3x3 and −48x?

  4. jagr2713
    • one year ago
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    what*

  5. anonymous
    • one year ago
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    3?

  6. rainbow_rocks03
    • one year ago
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    plz help

  7. jagr2713
    • one year ago
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    Good so What is the highest degree of x that divides evenly into 3x3 and −48x?

  8. anonymous
    • one year ago
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    help with what?? @rainbow_rocks03

  9. anonymous
    • one year ago
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    3?

  10. anonymous
    • one year ago
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    \[3x^3-48x=3x\left( x^2-16 \right)=?\] \[a^2-b^2=\left( a+b \right)\left( a-b \right)\]

  11. jagr2713
    • one year ago
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    nope degree not number @Nin

  12. rainbow_rocks03
    • one year ago
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    help with question

  13. anonymous
    • one year ago
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    48?

  14. rainbow_rocks03
    • one year ago
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    need to understand how to get my answer

  15. jagr2713
    • one year ago
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    @rainbow_rocks03 please post your question in the ask a question bo

  16. rainbow_rocks03
    • one year ago
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    I did

  17. jagr2713
    • one year ago
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    nope its X b.c thats the degree so now we multiplying the results above, the GCF is 3x

  18. anonymous
    • one year ago
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    yes please, we are working on something!! @rainbow_rocks03

  19. anonymous
    • one year ago
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    okay!@jagr2713

  20. anonymous
    • one year ago
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    @jagr2713

  21. jagr2713
    • one year ago
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    So now we factor out the GCF so put the GCF as the first term and then in teh parentheses divide each term by the GCF \[3x (\frac{ 3x2 }{ 3x }+\frac{ -48x }{ 3x }\]

  22. jagr2713
    • one year ago
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    So now we Simplify each term in parentheses and get?

  23. anonymous
    • one year ago
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    so 2+ 16x?

  24. jagr2713
    • one year ago
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    nope we simplify each term in parentheses and get 3x(x2-16)

  25. anonymous
    • one year ago
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    @jagr2713

  26. jagr2713
    • one year ago
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    So this ik you remember so we have x2−16 fits the form a2−b2 Rewrite it where a=x and b=4 3x(x2−42)

  27. jagr2713
    • one year ago
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    So now use the difference of squares \[a ^{2}-b ^{2}=(a+b)(a-b)\]

  28. jagr2713
    • one year ago
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    Plug it in :D

  29. anonymous
    • one year ago
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    (x+4)(x-4)

  30. anonymous
    • one year ago
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    @jagr2713

  31. jagr2713
    • one year ago
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    dont forget the 3x so the answer is?

  32. jagr2713
    • one year ago
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    So we get? igtg soon

  33. anonymous
    • one year ago
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    B?

  34. anonymous
    • one year ago
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    @jagr2713

  35. anonymous
    • one year ago
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    @jazzyspazzy @Jaynator495 @kdenice123 @inowalst @KaylaIsBae

  36. jagr2713
    • one year ago
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    Nope i said 3x

  37. anonymous
    • one year ago
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    @jagr2713 c?

  38. jagr2713
    • one year ago
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    Correct :D

  39. anonymous
    • one year ago
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    i didnt see that it was just 3

  40. jagr2713
    • one year ago
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    Well time to go :D ~Have a great day and great job :D

  41. anonymous
    • one year ago
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    thank you b!

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