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Morgan is trying to complete the square. What number should she put in the blank?

A) -9
B) 18
C) 81
D) -81

Morgan is trying to complete the square. What number should she put in the blank? A-example-1

1 Answer

0 votes

Answer:

C. 81

Explanation:

x^2-18x+81

(x-9)(x-9)

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