SOLUTION: I am supposed to write the solution set in interval notation. When I solve x2 -4<=0 I am stumped Thanks,

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: I am supposed to write the solution set in interval notation. When I solve x2 -4<=0 I am stumped Thanks,      Log On


   

Question 32367This question is from textbook Elementary and Intermediate alegbra
: I am supposed to write the solution set in interval notation. When I solve x2 -4<=0 I am stumped
Thanks, This question is from textbook Elementary and Intermediate alegbra

Answer by mukhopadhyay(490) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 - 4 <=0
=>x^2 <= 4
=> x <= 2 and x >= -2
Answer: x belongs to [-2,2]