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anonymous

  • one year ago

i need to use long division to solve: 4b^3+5b-3/2b-1

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  1. welshfella
    • one year ago
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    i lost that somehow... anyway sorry gotta go

  2. Nnesha
    • one year ago
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    long division 5 steps) \(\huge\color{green}{{1:}}\) Divide the first terms \(\huge\color{green}{{2:}}\) multiply(distribute) \(\huge\color{green}{{3:}}\) subtract all terms \(\huge\color{green}{{4:}}\) carry down \(\huge\color{green}{{5:}}\) repeat|dw:1433019343715:dw|

  3. anonymous
    • one year ago
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    why do you add in the 0b^2?

  4. Nnesha
    • one year ago
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    b^2 term isn't in the equation but we still have to write it in order highest to lowest degree 3,2,1,0

  5. Nnesha
    • one year ago
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    now divide first terms 4b^3/2b = ????

  6. anonymous
    • one year ago
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    2b^2?

  7. Nnesha
    • one year ago
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    yep right :=) now multiply divisor by 2b^2|dw:1433019573973:dw| 2nd step distribute 2b^2 (2b-1 ) =?

  8. anonymous
    • one year ago
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    then its gonna be 4b^3? which is going to cancel out right?..

  9. Nnesha
    • one year ago
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    yep right but 2b^2 (2b-1) = is not just equal to 4b^3 2b^2 times -1= -2b^2

  10. Nnesha
    • one year ago
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    |dw:1433019721662:dw|change signs 4b^3 and -4b^3 cancels out combine 0b^2 + 2b2

  11. Nnesha
    • one year ago
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    |dw:1433019788182:dw| now repeat the pattern divide first terms distribute by divisor change sign and then combine do ou want to try it ?

  12. anonymous
    • one year ago
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    i think i get it now, i just got stuck where i had to add in the 0b^2, but its making alot more sense

  13. anonymous
    • one year ago
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    so i did the rest of the problem.. is this right? 2b+b+3?

  14. Nnesha
    • one year ago
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    ohh alright yep number should be in order highest degree is 3 so 3 ,2,1,

  15. anonymous
    • one year ago
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    why do i need it in the highest degree?

  16. Nnesha
    • one year ago
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    yes that's right 2b+b+3

  17. Nnesha
    • one year ago
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    highest degree is 3 in the equation 4b^3 <-- and this is first term so you have to start from highest degree to lowest

  18. anonymous
    • one year ago
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    ohhh okay

  19. Nnesha
    • one year ago
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    yep good job!

  20. anonymous
    • one year ago
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    thank you so much, i really appreciate it :D

  21. Nnesha
    • one year ago
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    my pleasure :-)

  22. Nnesha
    • one year ago
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    btw \(\huge\color{Green}{{\rm welcome}\rm~to~open~study!!!!}\) \(\Huge \color{gold}{\star^{ \star^{\star:)}}}\Huge \color{green}{\star^{ \star^{\star:)}}}\) \(\Huge \color{blue}{\star^{ \star^{\star:)}}}\Huge \color{red}{\star^{ \star^{\star:)}}}\) \(\Huge \color{orange}{\star^{ \star^{\star:)}}}\Huge \color{purple}{\star^{ \star^{\star:)}}}\)\(\rm\color{green}{o^\wedge\_^\wedge o}\)

  23. anonymous
    • one year ago
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    haha thank you :D

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