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A close-up photo of a green chalkboard. The correct derivation steps of the quadratic formula are written in white chalk. First line: ax^2 + bx + c = 0. Second line: x^2 + (b/a)x = -c/a. Third line: completing the square. Final line: x = \\frac{-b \\pm \\sqrt{b^2 - 4ac}}{2a}. Handwriting neat and clear. No gibberish.
A hyperrealistic photo of a Penrose triangle made from polished gold, placed on a marble table. The object forms a continuous, impossible triangle optical illusion. The geometric structure has no breaks. Studio lighting.
Ambigram design art of a double orientation. Reading normally the word is 'LIFE', rotated 180 degrees upside down the word is 'DEATH'. Black ink on white paper, Gothic calligraphy style.
