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Maths Puzzle
Numerical Ability
A board game for 2 to 6 players has a deck of cards that can always be divided evenly among all the players. What is the smallest numbers of cards that are possible?
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book Other Question
What is the axis of symmetry of x^2+9x+4?
directions: find all the roots of each equation.
2x^3+3x^2-6x-9=0