If (x+1)(x+3)=5, then which of the following statements iis true? (x+11)=0 or x-3=0, x+1=5 or x-3=5, x-4=0 or x+2=0

Step-by-step explanation:

Multiplying out (x+1)(x+3)=5, we get x^2 + 3x + 1x + 3 = 5, or

x^2 + 4x = 2, or

x^2 + 4x - 2 = 0

The solutions of this quadratic are:

      -4 ± √( 16 - 4(1)(-2) )        -4 ± √8

x =  =  

                       2                          1

Both roots have the component √2 in them, and so none of the possible answer choices matches.  Double check, please, to ensure that you've copied this problem down correctly.  Thx.

x =

correct answers below: