$\frac{\frac{21}{17}+3}{4}+\frac{\frac{21}{17}+6}{3}=\frac{76}{17}$

$\frac{\left(x-y\right)\left(x^{2}+xy+y^{2}\right)}{x-y}$

$\log_b\left(x\right)=\frac{3}{2}\log_b\left(16\right)-\frac{2}{3}\log_b\left(8\right)$

$\left(-24\right)\cdot\left(-3\right)-1$

$\int\:x\:e^{15x}\:dx$

$0.9482+0.9482758620689655$

$-8j^4-3j^4$