Solving a quadratic equation by the square root method

The video tutorial explains the concept of X-intercepts, where the graph crosses the X-axis, and why the Y value is zero at these points. It guides students on how to find the X values by setting Y to zero and solving the equation. The tutorial introduces the square root method for solving equations with a single X term, demonstrating its application with an example of solving X^2=16, emphasizing the need to consider both positive and negative roots.

How do you determine the X values when Y is equal to 0?

What is the relationship between the square root of a number and its positive and negative values?