$$\int\frac{y^4+y-2}{y^2\left(y-1\right)}dx$$

$$\left(-3x^4-4x^3-1\right)-\left(-x^4+4x^3+2x^2+x+1\right)$$

$$\left(w-6\right)\left(w+7\right)$$

$$3x^4+9x^3$$

$$\frac{sin\:t}{sin\:t+cos\:t}=\:\frac{tan\:t}{a+tan\:t}$$

$$\left(3y^4\:-\:2y^4\:-\:5\right)$$

$$\left(14-5\right)\cdot\left|34+4\cdot\left(3-9\right)\right|\cdot\left(19-5\cdot3\right)\cdot\left|54-6\cdot\left(19-5\cdot2\right)\right|$$