Question

ex 6,7,2,5 va roggggg

Answer 1

2) 4x=x+36
4x-x=36
3x=36; x=36/3; x=13
5) 5[3+4(1+2x/3-8)]=46-11
3+4+8x/3-32=35/5
8x/3-25=7
8x/3=7+25
8x/3=32; 8x=32*3; 8x=96; x=96/8; x=12
6)x>-8
x+7< sau egal 3; x< sau egal -4
-8<x< sau egal -4
x = {-7; -6; -5; -4}
7)a) P= (125-1)(125-2)(125-3).......(125-125)...........(125-2010)=0
b) x=0; P= (-1)(-2)(-3)........(-2010)
    x=2011; P= (2011-1)(2011-2)(2011-3)........(2011-2008)(2011-2009)(2011-2010)=2010 x ......x3 x 2 x 1
Deci, produsele sunt egale pentru x=0 si x=2011