Solve a quadratic inequality and read its solution set

The first two displayed lines mean or, not and:

The third line gives the same set in interval notation, the form a problem usually asks for:

Neither $1$ nor $2$ is included because the problem uses $>$ rather than $\ge$. As a quick check, $x=0$ and $x=3$ each give $2>0$ on the left, while $x=\frac{3}{2}$ gives $-\frac{1}{4}<0$. If your problem uses another relation, tap its sign at the top before solving; these intervals are specific to the example.

Open the mode menu, choose Inequality, then choose Solve inequality (degree 3), Solve inequality (degree 4), or Solve inequality (degree 5).

Degree 3 gives four coefficient boxes, degree 4 gives five, and degree 5 gives six; the degree-5 row scrolls sideways. Enter coefficients from the highest power to the constant, pressing equals after each box; the last press solves. Choose $>$, $\ge$, $<$ or $\le$ in the strip at the top; $>$ is selected by default.

For $x^3-x>0$, enter $1,0,-1,0$: the screen shows $-1<x<0$, then $1<x$, then $x\in (-1,0)\cup (1,\infty )$. The first two lines mean or.

Degree 4 or 5 can show up to three interval lines, followed by the interval notation. For $x^4-5x^2+4>0$, enter $1,0,-5,0,4$: the screen shows $x<-2$, $-1<x<1$, and $2<x$, followed by $x\in (-\infty ,-2)\cup (-1,1)\cup (2,\infty )$. A solution can also include an isolated point such as $x=1$; a long interval line scrolls sideways inside its own box.