| 2x | 2x | |||
a) | − 1 = | |||
| 2x + 3 | 2x−3 |
| 2x + 1 | 3 | |||
b) | − | = 0 | ||
| x2−9 | x−3 |
| 3−x | 5x | |||
c) | − | = 0 | ||
| 4x2+4x+1 | 2x+1 |
| 3 − x | 5 x | ||
− | = 0 ; x ≠ − 0,5 | ||
| ( 2 x + 1)2 | 2 x + 1 |
| 3 − x | 5 x*(2 x +1) | ||
− | = 0 | ||
| (2 x +1)2 | (2 x+1)2 |
| 3 − x − 10 x2 − 5 x | |
= 0 | |
| (2 x+1)2 |
| − 6 − 2√39 | ||
x = | = −0,3 − 0,1*√39 | |
| 20 |