What three less than the sum of x and 12 ?

Find the value of 1715⋅211.though these numbers aren't quite as nice as the ones from the example or the previous part, the procedure is the same, so this is really no more difficult. give the numerator followed by the denominator, separated by a comma.

State how many imaginary and real zeros the function has. f(x) = x3 - 20x2 + 123x - 216

Who can me with this algebra for your guys.