Algebra
Calculus
Trigonometry
Matrix
Question
Solve the equation
x=−2
Evaluate
1−x3=9
Move the constant to the right-hand side and change its sign
−x3=9−1
Subtract the numbers
−x3=8
Change the signs on both sides of the equation
x3=−8
Take the 3-th root on both sides of the equation
3x3=3−8
Calculate
x=3−8
Solution
More Steps
Evaluate
3−8
An odd root of a negative radicand is always a negative
−38
Simplify the radical expression
More Steps
Evaluate
38
Write the number in exponential form with the base of 2
323
Reduce the index of the radical and exponent with 3
2
−2
x=−2
Show Solution
Graph
