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Maths Puzzle
Numerical Ability
x to the fourth power + x cubed + x squared + two x + one divided by x + one
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book Other Question
Solve each of the following systems by substitution.
5x - 2y = -5
Y - 5x = 3
An investor decides to invest some cash in an acount paying 13% annual interest, and to put the rest in a stock fund that ends up earning 7% over the course of a year. The investor