I wish I can give out more points but I'm lacking on points myself, so sorry! thank you for anyone who puts their time into helping me :-D (even answering one of the three questions are a big help for me!)
well I'm still trying to solve the first question so I'll tell you the other answers the answer for the second question is : [tex] {4x}^{2} + 20x[/tex] and for the third question : [tex] \frac{7}{8} [/tex]
