Answers

2014-06-30T18:40:06+08:00
X²+ 6x + 9 = 0

Factors of 9 na 6 ang sum: 3 and 3

Dahil parehas (+) yung symbol, parehas din yung symbol ng factors.

Factors: (x + 3)(x + 3)

Check by FOIL method / Distributive Property.
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