Sure, let's solve x^2=0 by using the quadratic formula. And I am sorry that I forgot the completing the square method in this video, so here it is:
Solve x^2=0
x^2+0x=0
x^2+0x+(1/2*0)^2=0+(1/2*0)^2
(x+0)^2=0
x+0= +- sqrt(0)
x=-0 +- sqrt(0)
x=0
Done!
0:00 Solving x^2=0 by using the quadratic formula
2:59 Solving x^2=0 by taking the square roots to both sides
3:26 Solving x^2=0 by using difference of two squares.
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