Step 1: How to use this calculator?

{'step': 1, 'description': 'Identify numero (125) and indice (3 for cube root)'}

Step 2: How to use this calculator?

{'step': 2, 'description': 'Calculate reciprocal of index: 1 ÷ 3 = 0.3333'}

Trying to find even roots (square, 4th) of negative numbers in real domain

Confusing root index with the result value

Calculadora Raiz

Last updated: 2026-08-24

Calculadora Raiz — Calcule â¿√x = x^(1/n). Exemplo: √144 = 12. Calculadora gratuita e precisa, sem registo. Com exemplos resolvidos. Usado por profissionais e estudantes em.

Inputs

Result

Enter values and press Calculate

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How to use it

{'step': 1, 'description': 'Identify numero (125) and indice (3 for cube root)'}
{'step': 2, 'description': 'Calculate reciprocal of index: 1 ÷ 3 = 0.3333'}
{'step': 3, 'description': 'Raise to power: 125^(1/3) = 5'}
{'step': 4, 'description': 'Verify: 5³ = 5 × 5 × 5 = 125 âœ“'}

Common mistakes

⚠️ Trying to find even roots (square, 4th) of negative numbers in real domain
⚠️ Confusing root index with the result value
⚠️ Not recognizing that square root is index 2 (default)

Worked example

Find the cube root (³âˆš) of 125 for solving cubic equations

The resultado ({resultado}) is the number that, when raised to the power of indice, equals the original numero.

Input guide

Field	Typical range
numero	Must be non-negative for even indices; typical: 1-10,000
indice	Square root: 2; Cube root: 3; Common: 2-10