Math instructor explains exponent rules on a whiteboard, demonstrating the simplification of a complex algebraic expression.
A man in a gray and black argyle sweater stands in front of a whiteboard, pointing to a math problem involving exponents. The board displays the expression (3x⁻³y⁴)² / (9x⁻⁶y⁸) and its simplification to 3⁻³x⁻⁶y². The website "yaymath.org" is visible in the bottom right corner.