exam Maths Puzzle Numerical Ability

Solve each of the following quadratic equations by completing the square.
x2 - 6x - 3 = 0

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exam Other Question

Please show me how to work this problem. Thanks!

Kathy has as many quarters as dimes, but twice as many nickles as dimes. She has 844 coins, how much money does she have? sketch the graph of this equation ; x = 9