Question
Solve the equation
x=31
Alternative Form
x=0.3˙
Evaluate
3x2×9x−1=0
Multiply
More Steps

Evaluate
3x2×9x
Multiply the terms
27x2×x
Multiply the terms with the same base by adding their exponents
27x2+1
Add the numbers
27x3
27x3−1=0
Move the constant to the right-hand side and change its sign
27x3=0+1
Removing 0 doesn't change the value,so remove it from the expression
27x3=1
Divide both sides
2727x3=271
Divide the numbers
x3=271
Take the 3-th root on both sides of the equation
3x3=3271
Calculate
x=3271
Solution
More Steps

Evaluate
3271
To take a root of a fraction,take the root of the numerator and denominator separately
32731
Simplify the radical expression
3271
Simplify the radical expression
More Steps

Evaluate
327
Write the number in exponential form with the base of 3
333
Reduce the index of the radical and exponent with 3
3
31
x=31
Alternative Form
x=0.3˙
Show Solution
