Which of the following must be true for an expression to be a difference of two square
a. both coefficients are perfect squares
b. there are only two terms
c. one term has a negative coefficient and one term has a positive coefficient

Question

Which of the following must be true for an expression to be a difference of two square
a. both coefficients are perfect squares 
b. there are only two terms 
c. one term has a negative coefficient and one term has a positive coefficient

anonymous · Answer

Answers : 
A. a and c
B. b and c
C. a and b
D. a,b, and c

mathmale · Answer

You might want to look up "difference of two squares" on the internet.  Bet you'd quickly find some good examples of that on the 'Net.

anonymous · Answer

what do you think?

anonymous · Answer

I think it is a and c

mathmale · Answer

Have you looked up "difference of two squares" on the Internet yet?