Question

10. Desfaceţi parantezele şi reduceţi termenii asemenea:
a) 3(4x-3y + 2z) -2(3x - 2y - 3z) - 4(x + 3y + 2z);
2(3x-2y-5z)-3(4x-2y-7z) - 4(2x + 3y + 3z);
b)
c) 4(5x-6y + 3z)-3(6x - 5y + 4z) -2(3x + 4y - 5z).
Rezolvare la toate puncte va rog mult!!

Answer 1

Răspuns:

3(4x-3y + 2z) -2(3x - 2y - 3z) - 4(x + 3y + 2z)=

12x-9y+6z-6x+4y+6z-4x-12y-8z=

2x-17y+4z

2(3x-2y-5z)-3(4x-2y-7z) - 4(2x + 3y + 3z)=

6x-4y-10z-12x+6y+21z-8x-12y-12z=

-14x-10y-z

4(5x-6y + 3z)-3(6x - 5y + 4z) -2(3x + 4y - 5z)=

20x-24y+12z-18x+15y-12z-6x-8y+10z=

-4x-17y+10z