$16b^2+\:8bc^33+c^2$
$\left(a^4b^2-c^3\right)^2$
$\left(\sin x+1\right)\left(\sin x-1\right)=-\frac{1}{\sec^2x}$
$3x+52>104$
$\left(x^2\:-\:5\right)^2\:2x$
$-7x+5x+4x-12;\:x=-12$
$\log\left(x^2-9\right)-\log\left(x+3\right)$
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