FST! JUTRO POTSZEBNE! DAJE DUŻO pkt.!
Zad. 8 Usuń nawiasy i zredukuj wyrazy podobne.
a) 5x+(2x-7)-9x-(-3x+8)+20-8x
b)-5x+(-2y+4x)-(7x-8y)-x+(2-6y)
c)-9z-(4-3z)-8y-(-7z+8y)+(-2y-7)
Zad. 5 Usuń nawiasy i wykonaj redukcję wyrazów podobnych.
a) (a+b)+(2a-b)
b) 2x+(3y-2z)+(3z-2x)
c) -5ab+(bc-2ab)+4cb
d) (5xyz-2xz)+(4zx-7zyx)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
zad8
a)5x+2x-7-9x+3x-8+20-8x=-7x+5
b)-5x-2y+4x-7x+8y-x+2-6y=-9x+2
c)-9z-4+3z-8y+7z-8y-2y-7=z-13-18y
zad5
a)a+b+2a-b=3a
b)2x+3y-2z+3z-2x=3y+z
c)5xyz-2xz+4zx-7zyx=-2xyz+2xz
zad.8
5x+(2x-7)-9x-(-3x+8)+20-8x= 5x+2x-7-9x+3x-8+20-8x=-7x+5
-5x+(-2y+4x)-(7x-8y)-x+(2-6y)= -5x-2y+4x-7x+8y-x+2-6y= x+4y+2
-9z-(4-3z)-8y-(-7z+8y)+(-2y-7)= -9z-4+3z-8y+7z-8y-2y-7= -18y+z-11
zad.5
(a+b)+(2a-b)= a+b+2a-b= 3a
2x+(3y-2z)+(3z-2x)= 2x+3y-2z+3z-2x= 3y+z
-5ab+(bc-2ab)+4cb= -5ab+bc-2ab+4cb= -7ab+5bc
(5xyz-2xz)+(4zx-7zyx)= 5xyz-2xz+4xz-7zyx= -2xyz+2xz