3 Pre Cal Questions due in an hour

Due in an hour

Factor​ f(x) into linear factors given that k is a zero of​ f(x).

F(x)=4x3+19x2-138x+135; k=3

Factor f(x) = 2x3+x2-71x+140 into linear factors given that -7 is a zero of f(x)

For the polynomial function, (a) list all possible rational zeros, (b) find all rational zeros, and (c) factor f(x)

F(x) = x3+3x2-25x+21