Posted by **vince** on Wednesday, September 26, 2007 at 1:05am.

solve the inequality,express using interval notation

x3-5x2-14x>0

- algeb collage -
**drwls**, Wednesday, September 26, 2007 at 1:18am
First factor it and rewrite as

x (x-7)(x+2) > 0

The function crosses the y axis at x = -2, x=0 and x=7

When x<-2 all three factors are negative, so the function is <0 there

The -2<x<0, two factors are negative and one is postive, so the inequality is satisfied.

Cosider also the regions 0<x<7 and x>7 and figure out if the fucntiuon is postive or negative there.

## Answer this Question

## Related Questions

- Solve Inequality - Solve the inequality. Express your solution using interval ...
- precalculus - solve the inequality express your solution using interval notation...
- Math - Solve the inequality by first rewriting it as an equivalent inequality ...
- Math - Problem4 - Solve the inequality. Express your solution using interval ...
- algebra - solve the inequality express in interval notation x^4 + 4x^3 - 9x^2 - ...
- Alegra - solve the inequality express in interval notation x^4 + 4x^3 - 9x^2 - ...
- algebra - solve the inequality. Express the solution using interval notation and...
- Math Homework - Solve the inequality and express the answer in interval notation...
- pre cal - solve the inequality express your solution in interval notation (x - 4...
- calculus - use a sign chart to solve inequality. Express answers in interval ...

More Related Questions