Ronaldo
Hello again. So, the method I was going to explain is a little more time taking. It is meant to give you a deep understanding of the concept. It is not designed to be applied into such time pressured tests. Plus, you shouldn't be learning new concepts or methods at this point. Just keep grinding tests! The method of finding the factors is surprisingly the fastest. It might seem a bit slow at first, but as you keep exposing yourself to more and more of those problems, you'll start to get the hang of it. And just like MMHS explained, you should't ONLY focus on quadratics. Instead, have a balance between quadratics, year 8 and year 9 stuff. Alright with that said, good luck! Because, as I type this, I can literally feel the apprehensiveness building up inside me.