a)3x+x2-2x=0
x2+x=0
x(x+1)=0
x=0 lub x+1=0
x=-1
b) 2x3+x2-8x-4=0
x2(2x+1)-4(2x+1)=0
(x2-4)(2x+1)=0
(x-2)(x+2)(2x+1)=0
x-2=0 lub x+2=0 lub 2x+1=0
x=0 x=-2 2x=-1/:2
x=-1/2
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
a)3x+x2-2x=0
x2+x=0
x(x+1)=0
x=0 lub x+1=0
x=-1
b) 2x3+x2-8x-4=0
x2(2x+1)-4(2x+1)=0
(x2-4)(2x+1)=0
(x-2)(x+2)(2x+1)=0
x-2=0 lub x+2=0 lub 2x+1=0
x=0 x=-2 2x=-1/:2
x=-1/2