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Ask, and I'll work it out on the board
Maths and science, solved step by step and narrated aloud — then keep asking on the same board.
Explain Pythagoras to find the hypotenuse
Solve x² − 5x + 6 = 0 and graph it
Differentiate f(x) = x³ sin(x)
Balance C₃H₈ + O₂ → CO₂ + H₂O
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