$$\left(3p-2q\right)\left(3p+2q\right)$$

$$\left(6x+4y\right)^3$$

$$12x^2yz^3+18x^2y^3z+24x^2y^2$$

$$\ln x+3\ln y+6\ln z$$

$$-8+5+3q+6-4q+8q-4q+7$$

$$64-\left(2\cdot10\right)$$

$$\left(7a+11b\right)\cdot\left(3a-4m-6n\right)$$