Polynomdivison?
Hallo,
wie wendet man hier die Polynomdivison an?
Ich habe den ersten Schritt gemacht, aber bei mir kommt direkt nach (27/125)x^2 irgendwie null raus. Die Lösungen sollen ja 5, (-5) und 5 sein. Nur der Punkt 5 ist gegeben, weshalb ich durch (x-5) geteilt habe.
Aufgabe:
0= ((27/125x^3)-(27/25)x^2)-5,4x+27)):(x-5)
LG
Multiply the thing once with 125/27 to get rid of the annoying fractures, the factor can be replicated afterwards,
(x^3 – 5 x^2 – 25 x + 125 : (x – 5) = x^2 – 25
x^3 – 5 x ^2
————–
0 – 25 x + 125
-25 x + 125
————–
0
what such tasks are to do ( /25 and .4 ), is a mystery to me
First you multiply the whole equation with 125/27 and write 5.4 as 54/10 and get the equation:
Or after a briefing:
The polynomial division then supplies:
For the remainder term, the 3rd binary formula obviously applies:
x2 – 25 = (x + 5)·(x – 5)
Put the whole job down. It may be,
that you are already in the factors with 3.
Two. Potence has failed.
At least the solution of the zero-point task is correct, as
https://www.arndt-bruenner.de/mathe/scripts/polynome.htm
betrayed. But we don’t know what the questioner expected.