Ecuaciones cuadráticas escrito a mano en una pizarra con tiza, fórmulas matemáticas
Palabras clave
slate,
chalk,
idea,
schooling,
physics,
equation,
mathematic,
trinomial,
attraction,
formula,
jobbing,
black,
book,
board,
school,
signs,
symbol,
word,
idea,
success,
learn,
marketing,
time,
drawing,
handwriting,
solution,
apprenticeship
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