Which of the following polynomials is a difference of squares? * 10 points x^2+16 x^2+6x+9 x^2+5x+4 x^2-9

asked Feb 24, 2021 204k views

5 votes

Which of the following polynomials is a difference of squares? *

10 points
x^2+16
x^2+6x+9
x^2+5x+4
x^2-9

4.8k points

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2 votes

Answer:

x² - 9

Explanation:

A difference of squares has the form

a² - b²

Thus

x² - 9

= x² - 3² ← is a difference of squares

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