Proszę rozwiązać równania wielomianowe:
a)
b)
c)
d)
e)
a) 2x^{3}(x-2)-6x(x-2)
(2x^{3}-6x)(x-2)
2x^{3}-6x=0
2x^{3}=6x
x^{2}=3
x=pierwastek z 3
lub
x-2=0
x=2
b) 4x^{2}(4x-1)-1(4x-1)
(4x^{2}-1)(4x-1)
4x^{2}-1=0
4x^{2}=1
x=1/4 lub -1/4
4x-1=0
4x=1
x=1/4
c) błąd
d) x^{3}(8x+1)8(8x+1)
x^{3}+8=0
x^{3}=-8
x=-2
8x+1=0
x=-1/8
e) x^{3}(4x^{2}-1)-1(4x^{2}-1)
x^{3}-1=0
x^{3}=1
x=1
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a) 2x^{3}(x-2)-6x(x-2)
(2x^{3}-6x)(x-2)
2x^{3}-6x=0
2x^{3}=6x
x^{2}=3
x=pierwastek z 3
lub
x-2=0
x=2
b) 4x^{2}(4x-1)-1(4x-1)
(4x^{2}-1)(4x-1)
4x^{2}-1=0
4x^{2}=1
x=1/4 lub -1/4
lub
4x-1=0
4x=1
x=1/4
c) błąd
d) x^{3}(8x+1)8(8x+1)
x^{3}+8=0
x^{3}=-8
x=-2
lub
8x+1=0
x=-1/8
e) x^{3}(4x^{2}-1)-1(4x^{2}-1)
x^{3}-1=0
x^{3}=1
x=1
lub
4x^{2}-1=0
4x^{2}=1
x=1/4 lub -1/4