Question
Simplify the expression
261r3−1
Evaluate
r3×261−1
Solution
261r3−1
Show Solution

Find the roots
r=26132612
Alternative Form
r≈0.156478
Evaluate
r3×261−1
To find the roots of the expression,set the expression equal to 0
r3×261−1=0
Use the commutative property to reorder the terms
261r3−1=0
Move the constant to the right-hand side and change its sign
261r3=0+1
Removing 0 doesn't change the value,so remove it from the expression
261r3=1
Divide both sides
261261r3=2611
Divide the numbers
r3=2611
Take the 3-th root on both sides of the equation
3r3=32611
Calculate
r=32611
Solution
More Steps

Evaluate
32611
To take a root of a fraction,take the root of the numerator and denominator separately
326131
Simplify the radical expression
32611
Multiply by the Conjugate
3261×3261232612
Multiply the numbers
More Steps

Evaluate
3261×32612
The product of roots with the same index is equal to the root of the product
3261×2612
Calculate the product
32613
Reduce the index of the radical and exponent with 3
261
26132612
r=26132612
Alternative Form
r≈0.156478
Show Solution
