exam Maths Puzzle Numerical Ability

Determine the quadratic equation with integral coefficients having the roots:

-3 and 1

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exam Other Question

Kelly has a purse full of quaters and dimes. There are 58 more quaters than dimes and the total value of the change is $19.50. How many dimes are there? Using a new lawn mower, Abby can mow the lawn in 2 hours. Her sister Carla uses an older mower and takes 3 huors to mow the same lawn. How long will it take them if they work together? Please tell me how you answer it. That would be awesome.