1) -2x=2-x Rozwiaz rownania ... /-ulamek, 2-potega
2) 3(x-2)=6
3)x/2+4=-3x-3
4) 2-3x/5=x+5/4
5) -3(x-2)+9(x+1)2+11=(3x+2)(3x-2)
6) 2x-5=x-2
7) 2(x-3)=-4
8) -4x/3+6=2x-4
9) 2-x/4=6+2x/2
10) 4(x-1)2-2(x+2)-19=(2x-3)(2x+3)
z obliczeniami , z gory dzieki :)
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1) -2x=2-x
-x=2
x=-2
----------
2) 3(x-2)=6
3x-3=6
3x=9
x=3
-----------
3)x/2+4=-3x-3 |*2
x+8=-6x-6
7x=-14
x=-7
4) 2-3x/5=x+5/4 |*20
40-12x=20x+25
-32x=-15
x=15/32
lub
(2-3x)/5=(x+5)/4 |*20
8-12x=5x+25
-17x=17
x=-1
------------
5) -3(x-2)+9(x+1)²+11=(3x+2)(3x-2)
-3x+6+9x²+18x+9+11=9x²-4
15x=-30
x=-2
-------------
6) 2x-5=x-2
x=3
-------------
7) 2(x-3)=-4
2x-6=-4
2x=2
x=1
-------------
8) -4x/3+6=2x-4 |*3
-4x+18=6x-12
-10x=-30
x=3
-------------
9) (2-x)/4=(6+2x)/2 |*4
2-x=12+4x
-5x=10
x=-2
-------------
10) 4(x-1)2-2(x+2)-19=(2x-3)(2x+3)
4x²-8x+4-2x-4-19=4x²-9
-10x=10
x=-1