exam Maths Puzzle Numerical Ability

find each product

2xy(3x�-xy+7)

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exam Other Question

The measure of a complement of an angle is three more than twice the measure of the angle. What are the measures of the angle and its complement? Find the values of the polynomial for the given values of the variable

2x^2-5x + 1, x=2 and x=-2

Thanks for your help..