What is the answer to this problem?

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.

Ineed the solution to this problem and the steps.

Rewrite the polynomial -9x5 + 36x4 + 189x3 in factored form.