Вопрос Simplify the expression −120V Evaluate 0−120VРешение −120V Показать решение Find the roots V=0 Evaluate 0−120VTo find the roots of the expression,set the expression equal to 0 0−120V=0Removing 0 doesn't change the value,so remove it from the expression −120V=0Change the signs on both sides of the equation 120V=0Решение V=0 Показать решение