intermidate alegebra

ac Method
15t^ -17t-4
ac=15*4=60

This the ac Method can you help me finished this problem

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  1. It is not clear what you mean by the "ac method" or what you are trying to solve. You also don't have an exponent after the t^ . You also have not written an equation, so there is nothing to solve.

    Are you trying to solve
    15t^2 -17t -4 = 0 ?

    Perhaps you are refering to the "b^2 - 4ac) method of solving quadratic equations

    You can rewrite the equation as
    (5t +1)(3t -4)= 0
    which will lead to the solutions
    t = 4/3 or -1/5

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