$$0,3abc+2,3bc-ac+2,7cab+ac-0,3cb+abc$$

$$\sqrt[2]{256^8}$$

$$3x-6=x-14$$

$$\left(-54\right).\left(8\right)$$

$$\int8x\left(x^2+7\right)dx$$

$$12k\:+\:60k\:2\:+\:75k$$

$$\left(a^2+2\right)\left(a^2-2\right)$$