I would like to find out how to do this in steps for I have a far more difficult polynomial to solve.
Thank you
2007-09-08 04:57:27 · 4 answers · asked by Eiso 1 in Science & Mathematics ➔ Mathematics
Because it is a 4 degre polynomial equation, you will have four answers (real and/or complex) for x.
I don't know how to calculate that in steps with only a pencil and paper, but math programs on computer hopefully exists... so with the help on mathematica, you can find:
2 real solutions:
x = -2.44461
x = 1.67201
2 complex solutions:
x = -0.447032 - 2.12841 i
x = -0.447032 + 2.12841 i
2007-09-08 05:16:50 · answer #1 · answered by Anonymous · 0⤊ 0⤋
According to Descates law of signs, there will be at most 1 positive root and 3 or 1 negative roots.
A negative root appears between -2.4675 and 2.4677
A positive root appears between 1.656 and 1.657. The other two roots are complex and not real.
The way to approach these type (ones that cannot be factored) problems is to use a calculator or to try values of x and see if you can locate where f(x) changes sign between to succesive values of x. The answer lies between these two succesive values. Use Newton Rhapson method to get the desired accuracy.
2007-09-08 12:55:25 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋
3x^4+5x^3+4x^2+x+50-108=0
3x^4+5x^3+4x^2+x-58=0
there is no integer root for this equation
x is between 1,65 and 1,66
2007-09-08 12:13:37 · answer #3 · answered by iyiogrenci 6 · 0⤊ 0⤋
ur a fu*king nerd!!! get a life maybe? i think u should
ahhahahaha wana be a metematician lol ahahhahaha
gud luck anyway
2007-09-08 12:08:49 · answer #4 · answered by petersmith 2 · 0⤊ 0⤋