burhan101
x(x²+9x+3)= -5(2x+1)
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burhan101
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|dw:1343190923944:dw|
NotTim
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do you kno of synthetic division?
burhan101
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yes but wont i need to find a factor of 5 that would make the equation equal zero ?
burhan101
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oh nvm it's -1
NotTim
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I think so?
burhan101
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yup it is, thanks :)
NotTim
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awesome. that all yo uneed? confrimation?
burhan101
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yes but one more thing
burhan101
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|dw:1343191358412:dw|
burhan101
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zeros would be: (x+1) .. and idk which other ones :S
burhan101
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@lgbasallote any thoughts ?
NotTim
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for the other zeros, don't you have to solve for x^2+8x+5
burhan101
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yes but i cant come up with a whole number value for
NotTim
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do you need a whole number value?
burhan101
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yes
panlac01
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\[x=-1\]
\[x=-4-\sqrt{11}\]
\[x=\sqrt{11}-4\]
NotTim
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Panlac, you gotta explain your answer!
NotTim
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if we wanted answers, we'd use wolframalpha.com
burhan101
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there are no ways of getting whole #s ?
NotTim
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i never thought it neccessary. why oy uwant?
panlac01
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download it if you must :-)
NotTim
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yayy
burhan101
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this is great ! :D
what grade would this be btw ?
NotTim
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grade 10 or 11.
NotTim
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11 more like...
burhan101
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looks like the grade 12 advanced functions course material too
thank you soooooo much !
NotTim
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woOOooOO!
panlac01
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yeah. check out chapters 1-4: linear, quadratic, polynomial and logarithmic functions. you will be able to tell the movements and shifts and of the functions in no time, how many turning points (global/local maximum and minimums), and their values. I use wolfram alpha instead of TI calculators for best FIT models, but not on the problem you posted. I uploaded the whole textbook by Larson et al. to share.
burhan101
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thanks so much, my exam in in two days .. this will help A LOT !
burhan101
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the link you gave me was just chapter 2 though, right ?
panlac01
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yeah. but you can check out finedrafts.com/files and just look for Pre-Cal by Larson et al. the rest are physics and biology textbooks that I used.
burhan101
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okay thanks again !