if value of discriminant of quadratic equation is equal to zero. Then two of it's equal roots are always given as:
-B/2A
B/2A
-A/2B
A/2B
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Tan goes to a movie with his family. He has 2 free tickets. Find the amount he has to pay for the tickets if (a) there are 5 family members and each ticket costs $11, (b) there are n family..................................................
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