Answers

2015-06-17T20:13:43+08:00
Sum and difference of the same two terms? I can only give an example, Special Product (a+b)(a-b) =a(a-b)+b(a-b) =a(squared)-ab+ab-b(squared) =a(squared)-b(squared) I don't know the sign of raising a number.. Oh it's just square the first term, put the sign( which is mostly subtraction), and square the second term
0