algebra
posted by lan on .
solve the inequality. Express the solution using interval notation and graph the solution set on the real number line
x4/x^24 greater or equal to O

(x4)/(x^24) >= 0
Either both top and bottom are positive, or both negative
x4 > 0 if x > 4
x^24 > 0 if x > 2
only x > 4 satisfies both requirements
x4 < 0 if x < 4
x^2  4 < 0 if x < 2
So, 2 < x < 2
Solution set: (2,2)U(4,oo)