Для реакции были взяты вещества при температуре 40 градусов Затем их нагрели до температуры 70 градусов Как измениться скорость химической реакции если температурный коэффициент ее равен 2?

Объясните пожалуйста, как решаются подобные уравнения:

(x²-25)²+(x²+3x-10)²=0

Вставьте артикли где необходимо "a/an/the".

Swift, ... famous English writer, was travelling one day on ... horseback with his servant. ... weather was bad, it was raining, and ... roads were muddy. In ... evening the two men came to ... inn. Before going to ... bed Swift told his servant to clean his boots. But... servant was lazy and did not do it. In ... morning Swift asked ... servant why he had not cleaned ... boots. "What's ... use of cleaning ... boots now?"said ... servant. "... roads are muddy, and ... boots will soon be dirty again." "All right,"said ... writer. "Let's go. We must continue ... journey." "But I haven't had ... breakfast," said ... displeased servant." "Well, what's ... use of giving you ... breakfast now?" said Swift: "You will soon be hungry again."