$\int\sin\left(15x\right)dx$

$\left(3xy^3+28y\right)\left(3xy^3-28y\right)$

$\left(10x^2-\left(8x+w\right)\right)^3$

$\frac{\left(-15\right)\left(-4\right)}{\left(-2\right)\left(-3\right)\left(-5\right)}-\left(-3\right)^{2}$

$\left(\frac{\frac{-ax^{-2}}{1+\frac{a}{x}}}{-x^{-2}}\right)$

$6x^2y^3dx+4x^3y^2dy=0$

$45.765+63.879+36.094$