exam Maths Puzzle Numerical Ability

Polynomials and factoring

x^2+3y+3x+xy

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exam Other Question

A vending machine will accept nickels and dimes only. The attendant checks the machine and finds 42 coins whose value is $3.40. How many coins of each type were there? Geometry. The length of a rectangle is 1 cm longer than its width. If the diagonal of the rectangle is 4 cm, what are the dimensions (the length and the width)of the rectangle?

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