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anonymous

  • one year ago

Divide. Use synthetic division, if possible. (x^4+6x^3-x^2-5x+1)/(x-2) (x^3+9x^2-5x+11)/(x^2+2)

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  1. anonymous
    • one year ago
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    \[\frac{(x^4+6x^3-x^2-5x+1)}{(x-2)}\] First you would want to factor out from the first 2 terms such that x-2 would be left out, for that we can write \[6x^3=8x^3-2x^3\] \[\implies \frac{(x^4-2x^3+8x^3-x^2-5x+1)}{(x-2)}\] Take out x cube\[\frac{(x^3(x-2)+8x^3-x^2-5x+1)}{(x-2)}\] Now try to write -x^2 as something so that when u take out 8x^2 common from 8x^3 and -x^2 you would be left with x-2 just like we did with first 2 terms

  2. anonymous
    • one year ago
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    Isn't synthetic division where you only use the coefficients? i guess im having more trouble doing with the second one-dividing the x^2+2

  3. anonymous
    • one year ago
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    I don't know what's "synthetic" division, but u can also simply just divide it, but I prefer to take out factors like that, I find it simpler

  4. anonymous
    • one year ago
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    Have u done the first one?

  5. anonymous
    • one year ago
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    you know it would be so much easier to do it on calcilator

  6. anonymous
    • one year ago
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    i think synthetic division is the one where you have the divisor boxed in the top left

  7. anonymous
    • one year ago
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    i forget if u box a positive 2 or a negative 2

  8. anonymous
    • one year ago
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    Like this? |dw:1439281391657:dw|

  9. anonymous
    • one year ago
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    |dw:1439281358017:dw|

  10. anonymous
    • one year ago
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    Sorry I've no idea about this method, but you can simply use long division or rewrite terms and take out factors, it's much simpler to just do long division honestly

  11. anonymous
    • one year ago
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    thats for the first one

  12. anonymous
    • one year ago
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    i think the answer needs to be a number not a graph

  13. anonymous
    • one year ago
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    are you sure

  14. anonymous
    • one year ago
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    its ok thanks for trying

  15. anonymous
    • one year ago
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    ya it should be a number

  16. anonymous
    • one year ago
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    oops

  17. anonymous
    • one year ago
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    i got the first one, just need the second

  18. Nnesha
    • one year ago
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    right synthetic where you just need coefficients and set the divisor equal to zero x-2=0 solve for x(add 2 both sides )x=2 |dw:1439293979673:dw| drop down the leading coefficient and then multiply by x value which is 2 write your answer above the line and combine that with 2nd term coefficient 2 times 1=2 6+2=8

  19. Nnesha
    • one year ago
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    apply long division method for 2nd one bec highest degree is 2 synethic division method is best for highest degree o one like x+2 x+4

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