Math please help

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Find an equation of the line that is tangent to the graph of f and parallel to the given line.

Function Line
f(x) = 2x^2 6x – y + 4 = 0

I know i have to find derivative 1st which will be f'(x)=4x but then how to i find equation do i plug 6 in for x so 4(6) would it be 6x-24???

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