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## Answers

2/3 x=-1/6 x^2-1/3

2/3 x=-x^2/6-2/6

12/3 x=-x^2-2

4 x=-x^2-2

4 x+x^2+2=0

x=-2+2^1/2,-2-2^1/2

2/3 x=-x^2/6-2/6

12/3 x=-x^2-2

4 x=-x^2-2

4 x+x^2+2=0

x=-2+2^1/2,-2-2^1/2

=>1/6x²+2/3x+1/3=0

=>(x²+4x+2)/6=0

=>x²+4x+2=0

=>x²+(2+2)x+2=0

=>x²+2x+2x+2=0

=>x(x+2)+2(x+1)

=>(x+2)(x+1)

=x=-2 and x=-1