exam Maths Puzzle Numerical Ability

Use the properties for radicals to simplify each of the following expressions. Assume that all variables represent positive real numbers.

√12x^3 /5



THis is my radical symbol √

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exam Other Question

Solve by completing the square

x^2-16x+63=0

Thanks for any help.
Sam found a number of nickels, dimes, and quarters in his room. He found three more dimes than nickels but twice as many quarters as dimes. The total value of the coins was $5.05. how many coins of each type did Sam find?