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

Option D. x² - 49

Step-by-step explanation:

We have to find the polynomial which is a difference of two squares.

It means polynomials will be in the form of a² - b² where a² and b² are perfect squares.

Out of all options A, B, C, D we have two options C and D in which x² and 49 are two perfect squares but difference of two squares is only in option D.

x² - 49 = x² - 7²

Therefore option D. (x² - 49) is the answer.

correct answer:

b.(19,-2)