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 Suma y resta Producto por escalar Producto Inversa
 Monomials Polynomials Special products Equations Quadratic equations Radical expressions Systems of equations Sequences and series Inner product Exponential equations Matrices Determinants Inverse of a matrix Logarithmic equations Systems of 3 variables equations
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 Ecuación de una recta Posición relativa de dos rectas Distancias Angles in space Inner product

 Cube roots Estimate cube roots Some numbers do not have an exact cube root. You then have to estimate a value, based on known cube roots that are less or greater than the given value. Estimate $\sqrt[3]{38}$ 27 < 38 < 64 $\sqrt[3]{27}<\sqrt[3]{38}<\sqrt[3]{64}$ $3<\sqrt[3]{38}<4$ The answer is 3 because 38 is closer to 27 than it is to 64. Estimate $\sqrt[3]{32}$ You can work out that the answer has to be a value between 3 and 4, because the cube root of 27 is 3 and the cube root of 64 is 4. The answer will also be closer to 3 than to 4, because 32 is closer to 27 than it is to 64.