1. What values of a, b, and c would you use in the quadratic formula for the following equation?

5x^2 + 9x=4

a = - 4,5 = 9,0 = 5

a=5, b = 9, c=-4

a = 5,5 = 4. c = 9

a=5, b = 9,0 = 4

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