Rozwiąż nierównośći,
a) 4x<5(x+1)
b)x-9 2(3x-1)
------- --------- >_ 0
4 - 3
1)4x > 5(x+1)
4x > 5x + 5
4x – 5x >5
-x > 5 / * (-1)
x < -5
a)
4x<5(x+1)
4x<5x+5
4x-5x<5
-x<5 |*(-1)
x>-5
b)
x-9 2(3x-1)
------- --------- > 0 |*12
3(x-9)- 8(3x-1) >0
3x-27-24x+8>0
21x-19>0
21x>19
x>19/21
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1)4x > 5(x+1)
4x > 5x + 5
4x – 5x >5
-x > 5 / * (-1)
x < -5
a)
4x<5(x+1)
4x<5x+5
4x-5x<5
-x<5 |*(-1)
x>-5
b)
x-9 2(3x-1)
------- --------- > 0 |*12
4 - 3
3(x-9)- 8(3x-1) >0
3x-27-24x+8>0
21x-19>0
21x>19
x>19/21