Question

Which of the following must be true for an expression to be a difference of two squares?
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
A. a and c
B. a,b, and c
C. a and b
D. b and c

Answer 1

@satellite73

Answer 2

@KendrickLamar2014

Answer 3

all three conditions have to be true

for example

25x^2 - 36y^2

is a difference of squares

the coefficients (25 and 36) are perfect squares
there are two terms: 25x^2 and -36y^2
the terms differ in signs: one is positive, the other negative

Answer 4

i get you but we could only pick one answer

Answer 5

i was thinking about C

Answer 6

so based on what I wrote above, I'm thinking it's `B. a,b, and c`

Answer 7

Thank you

Answer 8

you're welcome