$\left(x^3+6x^2+9x\right)+\left(3x^2+18x+27\right)$
$4e+3d+5e-5d$
$\left(1-\left(\frac{1}{2}\sqrt{-1}\right)\right)^3$
$\left(2b+8\right)^2$
$3.2\cdot3.14$
$1-\left(1+0.01125\right)^{-60}$
$x^2-5x-54$
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