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

x^2 + 18x = 0

User Andreas Daoutis
by
6.4k 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
User Shawn Swaner
by
5.9k points
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