$\lim_{x\to\infty}\left(\frac{x^3-2x+3}{5-2x^2}\right)$

$\frac{db}{dt}+2b=50,\:b\left(1\right)=60$

$\int e^{\left(3cos\left(2x\right)\right)}\sin\left(2x\right)dx$

$c^2-10c+24$

$-4\:x\:4\:y\:3\:+\:5\:x\:4\:y\:3\:-\:10\:x\:4\:y\:3$

$\sqrt{\frac{8x^6y^3}{15z^7}}$

$4x^2+4x-5$