$\int\left(\frac{5+8\sin\left(\sqrt{x}\right)}{\sqrt{x}}\right)dx$

$4x^3-3x+1$

$\lim_{x\to1}\left(\frac{ln\left(1-x\right)-tan\left(7\right)}{x^2}\right)$

$\frac{3}{4}x-\frac{5}{4}-\frac{2}{5}x+\frac{3}{5}\ge\frac{9}{20}x-\frac{7}{20}$

$5x^2-7x+3$

$2x^2-6x+9$

$\int\frac{\sqrt{2}}{\sqrt{\left(2x^2\right)}}dx$