Which method is the most efficient method to use to solve x^2+4x+3=0

Factoring

Step-by-step explanation:

To solve the equation , you must apply the factoring method.

You must find two real numbers b and c such that:

and

Then the expression:

You can prove that:

So

or

or

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step-by-step explanation:

4th option is correct xy=-10

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