6х^2-15х-36=6(х-4)(х-а)

1.Of course, Leonardo Dicaprio.2."Fault in Our Stars".This is the most amazing movie, that is worth a look for everyone.3. Angelina Jolie and Selena Gomez.4. In my opinion all on TV programs are very interesting.5. In my opinion all good.6. Leonardo Dicaprio.7. I do not like scary movies. 8. For me this time when is well. When you foget about problems, about what is happening in the word.

Решение: 6х^2-15х-36=6*(х-4)*(х-а)Ответ: х=4