What is the factorization of the trinomial below? x^3-12x^2+35x a. x(x-7)(x+5) b. (x^2-7)(x+5) c. x(x-7)(x-5) d. (x-7)(x+5)

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.