A concrete staircase is painted with a simple math equation in green: '1 + 1 = 3'. The walls and steps have a rough texture with visible cracks and some discoloration. The overall setting has an industrial and minimalistic appearance.
A section of a whiteboard features a mathematical expression written in black marker. The expression depicted is h(x) = 1 / √((x-8)(x+2)), which suggests a function involving variables and parentheses. The board is otherwise clean, with no additional markings or annotations.
A solved Rubik's Cube with all sides showing white squares is placed on a patterned white fabric background. The cube appears to be in a classic 3x3 configuration, and the fabric features a repeating paisley and geometric design in black.
A solved Rubik's Cube is resting on a multi-colored surface. The top face consists of nine yellow squares, while the visible side faces are blue. The background is divided into three sections with bold colors: orange, yellow, and light blue.
A partially solved 3x3 Rubik's Cube sits on a wooden surface. The visible sides show one face colored blue, another colored red, and the top face is yellow.