Rozwiąż równania:
: 18 kwie 2010, o 20:33
A)
\(\displaystyle{ 5x^{5}+4x^{4}-5x-4=0}\)
\(\displaystyle{ x^{4}(5x+4)-(5x+5)=0}\)
\(\displaystyle{ (x^{4}-1)(5x+4)=0}\)
\(\displaystyle{ (x^{2}+1)(x^{2}-1)(5x+4)=0}\)
dobrze?
B)
\(\displaystyle{ 3x^{5}-2x^{4}+3x-2=0}\)
\(\displaystyle{ 5x^{5}+4x^{4}-5x-4=0}\)
\(\displaystyle{ x^{4}(5x+4)-(5x+5)=0}\)
\(\displaystyle{ (x^{4}-1)(5x+4)=0}\)
\(\displaystyle{ (x^{2}+1)(x^{2}-1)(5x+4)=0}\)
dobrze?
B)
\(\displaystyle{ 3x^{5}-2x^{4}+3x-2=0}\)