Odpowiedź:
a) w(x ) = [tex]x^5 - 2 x^4 + 5 x^3[/tex] = [tex]x^3 *( x^2 - 2 x + 5 )[/tex]
bo
Δ = 4 - 4*1*5 < 0
b) W(x ) = [tex]x^4 - x^3 - 6 x^2 = x^2 * ( x^2 - x - 6) = x^2*( x - 3)*( x + 2)[/tex]
c) W( x) = [tex]2 x^6 - 4 x^5 +2 x^4 = 2 x^4 *( x^2 - 2 x + 1) = 2 x^4 * ( x - 1)^2[/tex]
Szczegółowe wyjaśnienie:
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Odpowiedź:
a) w(x ) = [tex]x^5 - 2 x^4 + 5 x^3[/tex] = [tex]x^3 *( x^2 - 2 x + 5 )[/tex]
bo
Δ = 4 - 4*1*5 < 0
b) W(x ) = [tex]x^4 - x^3 - 6 x^2 = x^2 * ( x^2 - x - 6) = x^2*( x - 3)*( x + 2)[/tex]
c) W( x) = [tex]2 x^6 - 4 x^5 +2 x^4 = 2 x^4 *( x^2 - 2 x + 1) = 2 x^4 * ( x - 1)^2[/tex]
Szczegółowe wyjaśnienie: