Answer:
D
Step-by-step explanation:
Use the FOIL method and multiply it out, and you should get
16x^2+28x-28x-49
Simplify that and you get the answer.
C
Square both sides:
x^2+2sqrt3+3=0
x^2=-2sqrt(3)-3
x=sqrt(2sqrt(3)+3)i
or
x=-sqrt(2sqrt(3)+3)i
Answer:lol thanks
You didn’t explain what we had to do....
I’m not really sure...I’m sorry
