Question

4x (9x-4)-12x (7+3x)=0 , 5x (6-4x)-3x (1+9x)=2-47x (x+2) , 8=3 (x-5)-5 (x-6)+2 (x+1)

Answer 1

4x (9x-4)-12x (7+3x)=0
36x²-16x-84x²-36x=0
-48x²-100x=0 I:4
-12x²-25x=0
--------------------------------------
5x (6-4x)-3x (1+9x)=2-47x (x+2)
30x-20x²-3x+27x²=2-47x²+94x
54x²-67x-2=0
---------------------------------------
8=3 (x-5)-5 (x-6)+2 (x+1)
8=3x-15-5x+30+2x+2
8=17   ∅
Sper ca ai inteles!!!
Succes!!!

Answer 2

4x(9x-4)-12(7+3x)=0⇒
36x-16-84-36x=0⇒-100

5(6-4x)-3(1+9x)=2-47(x+2)⇒
30-20x-3-27x=2-47x-94⇒
-47x+27=-47x-92⇒
-47x+47x+27+92=0⇒119

8=3(x-5)-5(x-6)+2(x+1)⇒
8=3x-15-5x+30+2x+2⇒
-2x+2x+17-8=0⇒9
succes