$$2sin^2x=sinx+3$$

$$8x^3y^2-14x^3y^2-5+x^3y^2+8$$

$$\int sin5xcos3x\:dx$$

$$\frac{1}{2}\left(x^2-y^2\right)-\frac{5}{2}\left(x^2-y^2\right)$$

$$4-8\ln\left(x\right)=9$$

$$3xy+2x$$

$$-7-4-12-8+4-9+1$$