$2x^2-9x+1$
$\frac{1}{2}a^3\:+\:\frac{1}{4}a^2\:-\frac{3}{4}\:a\:-\frac{1}{2}a^3\:+\:a^2$
$\int_{\sqrt{2}}^2\left(\tan\left(x\right)\sqrt{\sec\left(x\right)}\right)dx$
$64x^6+112x^4+49x^2$
$3-\left[-2-5-3\right]+7$
$t+4+3-2t$
$500.000+241$
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