Question

If x-1 is a factor of P(x)=x^3-7x^2+15x-9 which of the following represents the complete factorization for P(x)?
a)(x-3)(x+3)(x+1)
b)(x-3)(x-3)(x-1)
c)(x-3)(x+3)(x-1)
d)(x-3)(x+4)(x+1)

Answer 1

divide P(x) by (x-1) to get the quadratic equation... from which can be solve using any method in finding the roots of quadratic equation....

Answer 2

since (x-1) is a factor... it's either b or c depending on the roots of quadratic equation...