exam Maths Puzzle Numerical Ability

simplify:

(e+3)^2

thanks

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exam Other Question

you need to select a 4 character password for a computer account. Any digit 0-9 and any letter A-Z can be used for a character, and digits and letters can be repeated. How many possible passwords are there? Determine whether the statement is a tautology, self-contradiction or neither

(p ^ ~q) -> q