w(x) = x ^4 -5x^3 +6x^2
w(x)= x^2 (x^2 -5x+6)
delta= 25-24=1
x1= 5-1/2 = 2
x2= 3
w(x) = x^2 (x-2) (x-3)
x=0 lub x= 2 lub x=3
w(x) = 14x^3-7x^2+4x-2
w(x) = 7x^2(2x-1) + 2(2x-1)
w(x) = (7x^2 +2) (2x-1)
7x^2 + 2=0
delta= -56 < 0
2x-1=0
2x=1
x = 1/2
1)
W(x) = x^4 - 5 x^3 + 6 x^2 = x^2 *( x^2 - 5x + 6) = x^2 *( x - 3)*(x -2)
2)
W(x) = 14 x^3 - 7 x^2 + 4 x - 2 = 7 x^2 *( 2x - 1) + 2*( 2x - 1) =
= ( 7 x^2 + 2)*( 2x - 1)
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w(x) = x ^4 -5x^3 +6x^2
w(x)= x^2 (x^2 -5x+6)
delta= 25-24=1
x1= 5-1/2 = 2
x2= 3
w(x) = x^2 (x-2) (x-3)
x=0 lub x= 2 lub x=3
w(x) = 14x^3-7x^2+4x-2
w(x) = 7x^2(2x-1) + 2(2x-1)
w(x) = (7x^2 +2) (2x-1)
7x^2 + 2=0
delta= -56 < 0
2x-1=0
2x=1
x = 1/2
1)
W(x) = x^4 - 5 x^3 + 6 x^2 = x^2 *( x^2 - 5x + 6) = x^2 *( x - 3)*(x -2)
2)
W(x) = 14 x^3 - 7 x^2 + 4 x - 2 = 7 x^2 *( 2x - 1) + 2*( 2x - 1) =
= ( 7 x^2 + 2)*( 2x - 1)
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