Determine the Constant That Should Be Added to the Binomial $$x ^ { 2 } + 4 x - 9 = 0$$

question 334

Multiple Choice

Determine the constant that should be added to the binomial so that it becomes a perfect square trinomial. Then
write and factor the trinomial.
- $$x ^ { 2 } + 4 x - 9 = 0$$

• A) \(\{ - 2 - \sqrt { 13 } , - 2 + \sqrt { 13 } \}\)
• B) \(\{ 2 + \sqrt { 13 } \}\)
• C) \(\{ - 1 - \sqrt { 13 } , - 1 + \sqrt { 13 } \}\)
• D) \(\{ - 2 - 1 \sqrt { 13 } , - 2 + 1 \sqrt { 13 } \}\)

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