Difference of Squares

[SureHeIS]

 

[MathLover1]

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))

 

[nycmathguy]

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.

 

[nycmathguy]

View attachment 2918

Did you forget, AGAIN, to say THANK YOU to MathLover1 for answering YOUR thread?