Factoring quadratic trinomials. List down all the factors of (13).
List down the sum of (40).
Identify which two factors add up to 13.
x^2 + 13x + 40
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The correct solution is "x = -5 and x = -8".

Step-by-step explanation:

The given equation is:

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On factorizing the above equation, we get

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On taking "x" common, we get

⇒

⇒        

Now,

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On subtracting "5" from both sides, we get

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⇒                            

Or,

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On subtracting "8" from both sides, we get

⇒                  

⇒                              

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step-by-step explanation: