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Solve by factoring. x2 + 6x = - 9. Hint: This is a double root.
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5 votes
Solve by factoring.

x2 + 6x = - 9. Hint: This is a double root.

User Mtotowamkwe
by
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1 Answer

6 votes
x^2 + 6x = -9
( x + 3)^2 - 9 = -9
(x + 3)^2 = -9 + 9 = 0

x + 3 = 0

x = -3 ( double root)
User Ehsavoie
by
5.6k points
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