exam Maths Puzzle Numerical Ability

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Find a quadratic function with solutions -5+2i and -5-2i and a leading coefficient of 1.

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exam Other Question

The difference of two numbers is 1. 1/7 the larger number less 1/9 the smaller number is 1. Find the numbers. The ratio of the numerator to the denominator of a certain fraction is five to eight. If five is subtracted from the numerator and four is added to the denominator, the new fraction reduces to one-half. Find the original fraction.