Square root of 8 minus square root of 21 (√8-√21)

√8 - √21

Here we will walk you through the process of calculating the difference between the square root of 8 and the square root of 21. Essentially, we will calculate √8 - √21.

First, we need to find the square root of each number individually. Then we will subtract one from the other. Below is the step-by-step calculation:

1. Calculate the square root of 8:
√8 ≈ 2.82843

2. Calculate the square root of 21:
√21 ≈ 4.58258

3. Subtract the square root of 21 from the square root of 8:
2.82843 - 4.58258 = -1.75415

Therefore, the result of subtracting the square root of 21 from the square root of 8 is approximately -1.75415.

√8 - √21 ≈ -1.75415

To make things even more convenient, we have also expressed the result in its simplest radical form:

2√2 - √21

Subtracting Square Roots
Use the tool below to subtract another set of square roots.

Square root of 8 minus square root of 22
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