Question

Determine which polynomial is a difference of two squares.
a:x2 - 49
b:x2 + 14
c:x2 - 14
d:x2 + 49

Answer 1

a:x2 - 49

Answer 2

I can only see '49' that is a perfect square here, and x^2 is already one. Now which one is a 'difference'?

Answer 3

(\[(X^2-B^2)\]
That is the form you are looking for.

Answer 4

where \[B^2\] is a constant. such as 49 :)