$4x-3x+2$
$\int x^2\cosh\left(x\right)dx$
$3y-4\left(6-y\right)=15-6y$
$\left(4b^3+6xy\right)^2$
$33\cdot16$
$\sec^2\left(x\right)\cdot csc^2\left(x\right)\cdot tan^2\left(x\right)\cdot cos^2\left(x\right)=\frac{1}{cos^2\left(x\right)}$
$\left(3+2\right)\left(4+5\right)$
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