Question

Which polynomial is a difference of two squares?
x^2 + 25
x^2 − 25
x^2 − 10
x^2 + 10

Answer 1

b

Answer 2

explain

Answer 3

You notice that b can actually be turned into x^2 -5^2

Answer 4

yeah right @juanjohnguy

Answer 5

Difference of two numbers means one number subtracted from the other number.
x^2 is the square of x. 25 = 5^2, and 5^2 is the square of 5. So this is the difference of x^2 and 5^2, the difference of two squares.