exam Maths Puzzle Numerical Ability

24. Find b^2 � 4ac and the number of real solutions for the given equation.
�x^2 + 12x � 32 = 0

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exam Other Question

Samantha has a total of one hundred forty-one pennies,nickels and quarters.She has a total of $15.17. She has fifteen more quarters than pennies and fifteen fewer quarters than nickels. How many of each coin does she have? How come the variable sometimes is next to more then one number when there is more then one variable i get confused