SOLUTION: What value completes the square for the expression? x^2 - 18x A. 9 B. -9 C. 81 D. -81

Algebra ->  Equations -> SOLUTION: What value completes the square for the expression? x^2 - 18x A. 9 B. -9 C. 81 D. -81       Log On


   

Question 668951: What value completes the square for the expression?
x^2 - 18x
A. 9
B. -9
C. 81
D. -81
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
What value completes the square for the expression?
x^2 - 18x
A. 9
B. -9
C. 81
D. -81
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3rd term = (18/2)^2 = 9^2 = 81
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Cheers,
Stan H.
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