| (5−12√5)(2√5+15) | ||
x= | ||
| (2√5−15)(2√5+15) |
| 10√5+75−120−180√5 | ||
x= | ||
| 20−225 |
| −170√5−45 | ||
x= | ||
| −205 |
| 170√5+45 | ||
x= | ||
| 205 |
| (2−√5)(6+3√5 | ||
(√5x−4= | ||
| 2−3√5 |
| 12+6√5−6√5−15 | ||
x= | +4 /:√5 | |
| 2−3√5 |
| −3 | 4 | −3*(2√5+15) | 4√5 | |||||
x= | + | = | + | =zgadza się | ||||
| (2√5−15 | √5 | 20−225 | 5 |
I dziekuje pieknie za potwierdzenie!