oblicz: (2-3x)2 >= (x+1)2-4x2
a) 2(3-x)-3(x+1)=0
6-2x-3x-3=0
-5x=-3/:-5
x=3/5
b)2(3-x)-3(x+1)<7(1x)+(2x-2)
6-2x-3x-3<7x+2x-2
-14x<-5/:-14
x>5/14
c)2,4(x-1)-4,5<3(O,5-0,6x)
2,4x-2,4-4,5<1,5-1,8x
4,2x<8,4/:4,2
x<2
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a) 2(3-x)-3(x+1)=0
6-2x-3x-3=0
-5x=-3/:-5
x=3/5
b)2(3-x)-3(x+1)<7(1x)+(2x-2)
6-2x-3x-3<7x+2x-2
-14x<-5/:-14
x>5/14
c)2,4(x-1)-4,5<3(O,5-0,6x)
2,4x-2,4-4,5<1,5-1,8x
4,2x<8,4/:4,2
x<2