Estimate both sollutions to x^2+x-4=0

Classify the following triangle check all that apply

What are “like terms”? why can we only add like terms?

The statements below can be used to prove that the triangles are similar. ? △abc ~ △xyz by the sss similarity theorem. which mathematical statement is missing? ∠b ≅ ∠y ∠b ≅ ∠z