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Correctly complete the square for the equation below x^2 + 18x = 0

Correctly complete the square for the equation below x^2 + 18x = 0
asked 171k views
5 votes
Correctly complete the square for the equation below

x^2 + 18x = 0

asked
User Andreas Daoutis
by
8.8k points

1 Answer

6 votes
x^2 + 18x = 0
(x^2 + 18x + 81) = 0
(x + 9)^2 = 81
x + 9 = +/-squareroot81
x = 0, and -18
answered
User Shawn Swaner
by
7.9k points
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