3X-8 РАЗДЕЛИТЬ НА X+2 + 8 РАЗДЕЛИТЬ НА x-2= 7x² - 28 РАЗДЕЛИТЬ НА X² - 4

Правильно употребить глаголы в Past Simple, Past countinuous, Past Perfect

3. Yesterday I (to read) a story. It (to be) a story about a novelist who (to write) a novel that (to be) a great success. Once he (to mmet) his friend that he (not to see) for many years. After they (to talk) for some hours, the novelist ( to say): *We have already talked about me. Now, lets talk about you. What you (to think) about the lst novel when you (to read) it?*

Напишите пожалуйста коэффициенты:

1) CAO+HCl=CaCl2+H2O

2)NaHCO3=NA2Co3+H2O+Co2

3) Mg+H2SO4=MgSo4+ H2