Evaluate square root of 22
Problem
Solution
Identify the number under the radical, which is
22 Determine if the number is a perfect square. Since
4=16 and5=25 the value of√(,22) is an irrational number between4 and5 Factor the radicand to see if it can be simplified. The prime factorization of
22 is2×11 Conclude that since there are no square factors, the expression cannot be simplified further in radical form.
Approximate the value using a calculator if a decimal is required.
√(,22)≈4.6904157598
Final Answer
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