Help me with this plz I’ll give brainlist for the right answer

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.

I'm confused on this could anyone me and show me what i need to do to solve it.

State one method by which you can recognize a perfect square trinomial.