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The square root of a number x is a value r such that r² = x. Every positive number has two square roots: a positive (principal) root and a negative root. Only zero has a single square root: zero itself.
Водич чекор-по-чекор
- 1Factor the number into prime factors
- 2Pair up identical prime factors
- 3Take one factor from each pair and multiply them
- 4Any unpaired factors stay inside the radical symbol
Worked Examples
Влез
√144
Резултат
12
12 × 12 = 144
Влез
√2
Резултат
1.41421…
Irrational — cannot be simplified further
Влез
√0.25
Резултат
0.5
0.5 × 0.5 = 0.25
Влез
√200
Резултат
10√2
√(100 × 2) = 10√2 ≈ 14.142
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