Difference of Squares

x^2+11=0
x^2=-11
roots:
sqrt(-11)=i*sqrt(11)
or
- sqrt(-11)=-i*sqrt(11)

factors will be: (x- i*sqrt(11)) and x-(-i*sqrt(11))=(x+ i*sqrt(11))


answer is B: (x+ i*sqrt(11))(x- i*sqrt(11))
 
x^2+11=0
x^2=-11
roots:
sqrt(-11)=i*sqrt(11)
or
- sqrt(-11)=-i*sqrt(11)

factors will be: (x- i*sqrt(11)) and x-(-i*sqrt(11))=(x+ i*sqrt(11))


answer is B: (x+ i*sqrt(11))(x- i*sqrt(11))

People today never cease to amaze me. This guy posted two threads which you answered. I have not seen his THANK YOU for your help.
 


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