Determine which polynomial is a difference of two squares.
x² + 14, x² -14, x² + 49, x² - 49 

Solution:

We will use the algebraic identity a² - b² = (a + b)(a - b)

Thus, from the given polynomials x² + 14, x² -14, x² + 49 and x² - 49

x² - 49 is the polynomial that can be expressed as the difference of the two squares.

The expression can be rewritten as x² - (7)².

Some other polynomials which can be expressed as a difference of two squares are

y² - 81can be rewritten as y² - (9)².

x² - 36 can be rewritten as x² - (6)²

x² - 16 can be rewritten as x2 - (4)² and>

y² - 64 can be rewritten as y² - (8)²

Determine which polynomial is a difference of two squares.

Summary:

x² - 49 is the polynomial that can be expressed as the difference of two squares.