What is the limit as x approaches 2 of the rational expression (3x - 6)/(x^2 - 4)?
+
Math question: In triangle ABC, angle bisector BD intersects side AC at point D. If angle ABD measures 60° and angle BAC measures 120°, what is the measure of angle ABC?
+
What is the quadratic formula and how is it used to find the solutions of a quadratic equation?