Question

Solve the inequality. Be sure to show all of your work and show your final answer using interval notation. x^2-49>0

Answer 1

x^2 - 49 > 0

x^2 > 49

so |x| > sqrt(49)

so |x| > 7

in interval notation, this is (-infinity, -7) U (7, infinity)

Answer 2

or R \ [-7, 7]

Answer 3

Thank you Jamesm :)