$$3\sin^2\left(u\right)-2\sin\left(u\right)=0$$

$$\left(\:5ax\:+\:4\:\right)\:\left(\:2ax\:+\:6\:\right)$$

$$\int\left(4x^2\cdot e^{2x}\right)dx$$

$$\int\left(z+2\right)^2dz$$

$$\frac{2x}{xy}$$

$$\left(3x^2-5x+14\right)+\left(2x-17\right)$$

$$\left(2x\:+\:7\right)^2\:\left(x+\sqrt{7}\right)\:\left(x-\sqrt{7}\right)$$