Wielomian W(x)=2x^4-4x^2+2+x^3-x przedstaw w postaci iloczynu czterech wielomianów stopnia pierwszego
^ do potęgi
2x⁴-4x²+2+x³-x=
2x⁴-2x²-2x²+2+x³-x=
2x²(x²-1)-2(x²-1)+x(x²-1)=
(2x²+x-2)(x²-1)=
(2x²+x-2)(x-1)(x+1)=
2x²+x-2
Δ=1²-4*2*(-2)Δ=1+16
Δ=17
√Δ=√17
x₁=(-1-√17)/(2*2)x₁=(-1-√17)/4
x₂=(-1+√17)/(2*2)
x₂=(-1+√17)/4
((-1-√17)/4)((-1+√17)/4)(x+1)(x-1)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2x⁴-4x²+2+x³-x=
2x⁴-2x²-2x²+2+x³-x=
2x²(x²-1)-2(x²-1)+x(x²-1)=
(2x²+x-2)(x²-1)=
(2x²+x-2)(x-1)(x+1)=
2x²+x-2
Δ=1²-4*2*(-2)
Δ=1+16
Δ=17
√Δ=√17
x₁=(-1-√17)/(2*2)
x₁=(-1-√17)/4
x₂=(-1+√17)/(2*2)
x₂=(-1+√17)/4
((-1-√17)/4)((-1+√17)/4)(x+1)(x-1)