$$2x^2-28x+98=0$$

$$\left(m^x-m^3\right)^2$$

$$3\log_b\left(4\right)-\log_b\left(16\right)+\frac{1}{3}\log_b\left(8\right)=\log_b\left(x\right)$$

$$6x<-12$$

$$\left(n^3\right)^3$$

$$\int\left(\frac{3}{2+u^2-3u}\right)du$$

$$x^3-3x^2-25x-21$$