Posted by vince on Wednesday, September 26, 2007 at 1:05am.
solve the inequality,express using interval notation
x35x214x>0

algeb collage  drwls, Wednesday, September 26, 2007 at 1:18am
First factor it and rewrite as
x (x7)(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...
 math/algebra  Solve the polynomial inequality and graph the solution set on a ...
More Related Questions