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Maths Puzzle
Numerical Ability
What is the sum of (2n+1)squared using 0<n<infinity?
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Brenda and Nicki sell memberships in an automobile club over the telephone. Brenda sells one membership every 0.125 hour, and Nicki sells one membership every 0.1 hour. At what r
The directions on my paper read: Subtract the sum of the last two polynomials from the sum of the first two. Please help me.
1.) 2x^2-14xy+7y^2
2.) 3x^2-2