To find the roots of the expression,set the expression equal to 0
x3−x2−x×1=0
Any expression multiplied by 1 remains the same
x3−x2−x=0
Factor the expression
x(x2−x−1)=0
Separate the equation into 2 possible cases
x=0x2−x−1=0
Solve the equation
More Steps
Evaluate
x2−x−1=0
Substitute a=1,b=−1 and c=−1 into the quadratic formula x=2a−b±b2−4ac
x=21±(−1)2−4(−1)
Simplify the expression
More Steps
Evaluate
(−1)2−4(−1)
Evaluate the power
1−4(−1)
Simplify
1−(−4)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses