$Y^2-Y^1+Y+1=0$
$\left(A^T\right)^{-1}=\left(A^{-1}\right)^T$
$2x1+6x2=8$
$a1+a2=0$
$11x+5x-1=65x-36$
$14x-12x+39x-18x=256-60x-657x$
$2x+1=0$
Equations that have variables inside a radical.
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