$\int\left(\frac{4}{3}+\frac{7x}{9}\right)^4dx$

$\lim_{x\to-1.6}\left(\frac{x-3}{x+5}\right)$

$\frac{4x^2-36}{2x-6}$

$\left(-29\right)\left(-5\right)$

$\lim_{x\to1}\left(\frac{ln\left(x\right)}{sen\left(7\pi x\right)}\right)$

$27^{x-1}=\:9^{2x-3}$

$\frac{c}{3}+\frac{b}{5}-\frac{a}{2},\:a=2,\:b=5,\:c=3,\:d\:=-1,f=0$