Math Problem Statement

(2 - 2^(1/2))^3

Solution

The expression in the image is:

(2212)3\left( 2 - 2^{\frac{1}{2}} \right)^3

This represents a cube of the term inside the parentheses, where 2122^{\frac{1}{2}} is the square root of 2.

Step-by-step evaluation:

  1. First, calculate 2122^{\frac{1}{2}}, which is the square root of 2: 212=21.4142^{\frac{1}{2}} = \sqrt{2} \approx 1.414

  2. Now substitute 2\sqrt{2} into the expression inside the parentheses: 2221.414=0.5862 - \sqrt{2} \approx 2 - 1.414 = 0.586

  3. Cube this result: (0.586)3=0.586×0.586×0.5860.201(0.586)^3 = 0.586 \times 0.586 \times 0.586 \approx 0.201

So, the value of the expression is approximately:

(2212)30.201\left( 2 - 2^{\frac{1}{2}} \right)^3 \approx 0.201

Would you like more details on any specific step or further clarification?


Here are 5 related questions to expand your understanding:

  1. How would the result change if the exponent were different, like (2212)2\left( 2 - 2^{\frac{1}{2}} \right)^2?
  2. What is the cube root of (2212)3\left( 2 - 2^{\frac{1}{2}} \right)^3?
  3. How can you express this using logarithms or exponential notation?
  4. How does this equation relate to radical expressions in algebra?
  5. How would the result be affected if the base of the exponent was different (e.g., 3123^{\frac{1}{2}})?

Tip: Always approximate roots like 2\sqrt{2} to several decimal places for more accuracy when working with cubes and higher powers!

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Math Problem Analysis

Mathematical Concepts

Exponents
Square Roots
Cubing

Formulas

a^(b/c) = c-root(a^b)
Cube of a number: (a)^3 = a * a * a

Theorems

Exponentiation rules
Simplification of radicals

Suitable Grade Level

Grades 9-11