$2y^3-6y^2+9y$
$x+\sqrt{x+3}=2x+1$
$29=8q-11$
$6x^2+3y^2=12$
$x^2+2=22$
$\left(d+a\right)^2$
$\left(6x-7y\right)\left(a+b\right)^2+\left(-2x-5y\right)\left(a+b\right)^2$
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