Question
Solve the inequality
Solve the inequality by testing the values in the interval
Solve for x
x>−512
Alternative Form
x∈(−512,+∞)
Evaluate
x5>−12
Move the expression to the left side
x5−(−12)>0
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
x5+12>0
Rewrite the expression
x5+12=0
Move the constant to the right-hand side and change its sign
x5=0−12
Removing 0 doesn't change the value,so remove it from the expression
x5=−12
Take the 5-th root on both sides of the equation
5x5=5−12
Calculate
x=5−12
An odd root of a negative radicand is always a negative
x=−512
Determine the test intervals using the critical values
x<−512x>−512
Choose a value form each interval
x1=−3x2=−1
To determine if x<−512 is the solution to the inequality,test if the chosen value x=−3 satisfies the initial inequality
More Steps

Evaluate
(−3)5>−12
Calculate
−35>−12
Calculate
−243>−12
Check the inequality
false
x<−512 is not a solutionx2=−1
To determine if x>−512 is the solution to the inequality,test if the chosen value x=−1 satisfies the initial inequality
More Steps

Evaluate
(−1)5>−12
Calculate
−1>−12
Check the inequality
true
x<−512 is not a solutionx>−512 is the solution
Solution
x>−512
Alternative Form
x∈(−512,+∞)
Show Solution
