Wyznacz wszystkie wymierne pierwiastki wielomianu \(\displaystyle{ W(x)}\) jeśli:
\(\displaystyle{ a) \ W(x)=3x^3+x^2-6x-2}\)
\(\displaystyle{ b) \ W(x)=2x^3-x^2+2x-1}\)
\(\displaystyle{ b) \ W(x)=2x^3+x^2-2x-1}\)
\(\displaystyle{ e) \ W(x)=x^4-x^3+4x-4}\)
\(\displaystyle{ f) \ W(x)=x^4+2x^3+x+2}\)
\(\displaystyle{ a) \ W(x)=3x^3+x^2-6x-2}\)
\(\displaystyle{ (+/- \ 2)}\)
\(\displaystyle{ (+/- \ 1)}\)
\(\displaystyle{ (+/- \ \frac{2}{3})}\)
\(\displaystyle{ \red (+/- \ \frac{1}{3})}\) a to skąd niby?
\(\displaystyle{ W\left( \frac{1}{3} \right) \neq 0}\)
\(\displaystyle{ W\left(- \frac{1}{3} \right) = 0}\)
\(\displaystyle{ W\left( \frac{2}{3} \right) \neq 0}\)
\(\displaystyle{ W\left( - \frac{2}{3} \right) \neq 0}\)
\(\displaystyle{ W\left(- 1 \right) \neq 0}\)
\(\displaystyle{ W\left( 1 \right) \neq 0}\)
\(\displaystyle{ W\left(- 2 \right) \neq 0}\)
\(\displaystyle{ W\left( 2 \right) \neq 0}\)
Pomoże ktoś w reszcie podpunktów?
