Exercise : Algebraic Formulae

Assalamualaikum people,

I believe that you might be nervous and worried about you coming Standardized Test 1, do you?
So, i will help you by giving some exercises that hopefully may test you knowledge about Algebraic Formulae. 
I am sure that most of you still kind of blurr about the subject right? So please make this exercise as one of your pre-test. Hope it works!

Link :
1. Exercise : Algebraic Formulae
2. Answers

Until then, GOOD LUCK <3