a)
4x+3=2x-9
4x-2x=9-3
2x=6 |:2
x=3
b)
(x-2)(x+2)-3x=x 2 +2
x kwadrat-4-3x=x kwadrat+2
-3x=2+4 |:(-3)
x=-2
c)
3(x-1) _>x+5
3x+3_>x+5
3x-x_>5-3
2x_>2 |:2
x_>1
d) ile tam jest? 125?
a) 4x+3= 2x-9
4x-2x=-9-3
2x=-12 /:2
X= -6
b) (x-2)(x+2)-3x= x2+2
x2+2x-2x-4-3x=x2+2
-3x=6/ (*-1)
X=-2
c) 3(x-1)_>x+5
3x-3_>x+5
2x_>8
X_>4
d) x-2<1-2x+125
3x< 128/ :3
X= 42,6
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a)
4x+3=2x-9
4x-2x=9-3
2x=6 |:2
x=3
b)
(x-2)(x+2)-3x=x 2 +2
x kwadrat-4-3x=x kwadrat+2
-3x=2+4 |:(-3)
x=-2
c)
3(x-1) _>x+5
3x+3_>x+5
3x-x_>5-3
2x_>2 |:2
x_>1
d) ile tam jest? 125?
a) 4x+3= 2x-9
4x-2x=-9-3
2x=-12 /:2
X= -6
b) (x-2)(x+2)-3x= x2+2
x2+2x-2x-4-3x=x2+2
-3x=6/ (*-1)
X=-2
c) 3(x-1)_>x+5
3x-3_>x+5
2x_>8
X_>4
d) x-2<1-2x+125
3x< 128/ :3
X= 42,6