Solve `(x^(2)+x-2) (x^(2)+x-3)=12`

Solve x^(2)+2=0

Solve: -x^2+x-2=0

Solve x^2+3=0

Solve x(x+2)(x^(2)-1)= -1

Solve: x^2-2x+3=0 .

Solve : |(x^(2)-1,x^(2)+2x+1,2x^(2)+3x+1),(2x^(2)+x-1,2x^(2)+5x-3,4x^(2)+4x-3),(6x^(2)-x-2,6x^(2)-7x+2,12x^(2)-5x-2)| =0

Solve x^2+3x+5=0