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

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

Ad: You enter your algebra equation or inequality - Algebrator solves it step-by-step while providing clear explanations. Free on-line demo .
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

   

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]