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xz_007 [3.2K]
4 years ago
12

Help Please This is really hard. 5 points!

Mathematics
2 answers:
pishuonlain [190]4 years ago
5 0

Answer:

<em>C. m = 6</em>

Step-by-step explanation:

The quadratic equation has a single solution, x = -3.

(x - (-3))(x - (-3)) = 0

(x + 3)(x + 3) = 0

(x + 3)^2 = 0

x^2 + 6x + 9 = 0

x^2 + mx + n = 0

m = 6; n = 9

KonstantinChe [14]4 years ago
4 0

Your answer should be positive 3 A.

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