pattersonkari pattersonkari

26-01-2022
Mathematics

contestada

Which expression is equivalent to 9n^2-25?
A. (3n-5)^2
B. (3n+5)(3n-5)
C. 9(n-4)^2
D. 9(n+4)(n-4)

Respuesta :

jimthompson5910 jimthompson5910

26-01-2022

Answer: B. (3n+5)(3n-5)

Explanation:

Apply the difference of squares rule

a^2 - b^2 = (a+b)(a-b)

In this case you'll use a = 3n and b = 5.

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