Dany jest wielomian określony wzorem W(x)=3-2x+x^4. Oblicz:
a) W ( 3 pierwiastki z 2)
b) W ( pierwiastek z 5 -1 )
c) W ( pierwiastek z 3 + pierwiastek z 2 )
daje naj < 3
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x^4 = x⁴ ?
a) W(3√2)=3-2(3√2)+(3√2)⁴=3-6√2+1296=1299-6√2
b)W(√5-1)=3-2(√5-1)+(√5-1)⁴=3-2√5+2+56-24√5=61-26√5
c) W(√3+√2)=3-2(√3+√2)+(√3+√2)⁴=3-2√3-2√2+175+26√6=178+26√6-2√3-2√2