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Know The Invisible (Understood) Ones




When the symbol "x" is written to represent a number, it is understood that the coefficient of x is 1, the exponent of x is 1, and the divisor of x is 1.
It is understood that x means 1x, the coefficient is 1:
It is understood that x means x1, the exponent is 1:
It is understood that x means x/1, the divisor is 1:

Recalling these three invisible, unwritten, understood, ones facilitates computation.

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