Can someone help me? I'll reward points + brainalist

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).

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.