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Asad0000Best ResponseYou've already chosen the best response.1
What do you mean by "Find all zeros" ?
 one year ago

wioBest ResponseYou've already chosen the best response.0
Use rational root theorem to find first zero. Then use synthetic division to factor it out.
 one year ago

mark_o.Best ResponseYou've already chosen the best response.0
hi @evy15 are you in numerical analysis? the root are 2.07316, 1.2355, 5.5573 and two complex roots check it for yourself if they are true
 one year ago

matrickedBest ResponseYou've already chosen the best response.0
@evy though the equation is 5x^520x^440x^316x^245x+180=0 correct bu t may be i feel u have typed in 16X^2 instead of 160x^2
 one year ago

evy15Best ResponseYou've already chosen the best response.0
can someone please help me and explain to me how to begin this problem
 one year ago

mathmateBest ResponseYou've already chosen the best response.0
Have you done numerical methods in your course? This is not a problem that can be solved by factorization, or rearrangements. I suggest you triple check the question.
 one year ago

evy15Best ResponseYou've already chosen the best response.0
its correct can you tell me how to begin
 one year ago

mathmateBest ResponseYou've already chosen the best response.0
It can be solved numerically, or graphically. Are these expected methods to use in your course?
 one year ago

evy15Best ResponseYou've already chosen the best response.0
yes the thing is i missed a day in class and now i dont know how to work this out
 one year ago

mathmateBest ResponseYou've already chosen the best response.0
Are you working on factorization, Descartes rule of signs, etc.? I suggest you check your course outline to see what you're expected to know, or check with a friend to see what has been done that day. The prof would also be pleased to tell you what has been covered that day. This problem requires numerical methods which are techniques completely different from your previous problems.
 one year ago

evy15Best ResponseYou've already chosen the best response.0
can u help me and explain it to me
 one year ago

evy15Best ResponseYou've already chosen the best response.0
i have tried to use the book but i keep getting it wrong
 one year ago

mathmateBest ResponseYou've already chosen the best response.0
What is the name of your math course?
 one year ago

mathmateBest ResponseYou've already chosen the best response.0
Then there is probably another typo in the question.
 one year ago

evy15Best ResponseYou've already chosen the best response.0
there isn't, i already checked
 one year ago

mathmateBest ResponseYou've already chosen the best response.0
I believe you, but your prof made a typo! Check in the index of your textbook to see if Newton's method is in there. What is the title of your textbook?
 one year ago

evy15Best ResponseYou've already chosen the best response.0
Holt McDougal Larson Algebra 2
 one year ago

mathmateBest ResponseYou've already chosen the best response.0
Can you find "Newton's method" in the index?
 one year ago

mathmateBest ResponseYou've already chosen the best response.0
On which chapter are you working?
 one year ago

mathmateBest ResponseYou've already chosen the best response.0
Is it paper homework or online?
 one year ago

evy15Best ResponseYou've already chosen the best response.0
its a take home test and i couldnt find it
 one year ago

mathmateBest ResponseYou've already chosen the best response.0
As matricked pointed out, IF 16x^2 had been +160x^2, then there are rational roots obtainable by grouping. 5x^520x^440x^3+160x^245x+180 =5(x^54x^48x^3+32x^29x+36) \(= 5( x^4(x4) 8x^2(x4) 9(x4)) \) \(= 5(x4)(x^48x^29) \) \(= 5(x4)(x^29)(x^2+1) \) \(= 5(x4)(x+3)(x3)(x^+1) \)
 one year ago

mathmateBest ResponseYou've already chosen the best response.0
*last factor is \( (x^2+1) \)
 one year ago

evy15Best ResponseYou've already chosen the best response.0
ok do you solve for them now
 one year ago

evy15Best ResponseYou've already chosen the best response.0
hold on a second, im sorry
 one year ago
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