$$25x^2+60xyz+36y^2\:z^2$$

$$x^2-7x-27$$

$$\frac{d}{dx}\log\frac{10}{x}$$

$$\int\left(t^4\ln\left(t\right)\right)dt$$

$$0\cdot\left(-10\right)\cdot\left(-19\right)\cdot\left(-38\right)$$

$$\int_1^b\left(\frac{1}{x^{0.99}}\right)dx$$