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Quadratic equation printed on paper. Macro mode.
rhombus shape stained glass window is embedded in gray wall rough, textured surface. Window divided into four equal quadrats with textured, rippled glass different color, green, yellow, purple, blue
Crumpled tissue paper. Facial tissue on wooden background.
3d cube on a blue background. geometric figure. Outline. minimal.
Infographic design with white rectangle squares on the grey background. Eps 10 vector file.
graph of quadratic function with two real roots

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