$\log\left(5x-3\right)+\log\left(x+4\right)=1$
$12-\left(24-\left(-12+\left(-8\right)+18\right)\right)-6$
$x^2-3x-10.25$
$2^4-2^2$
$3x^3-13x^2+2x+8$
$-6:\left(3-2-2\right)-\left(1-2+3\right)$
$x^2+\frac{w}{2}x+\frac{w}{16}^2$
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