How to take out square roots
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I explain it
with an example:
Find the square root of 441 in prime factorisation method:
Step I: write the prime factorisation of 441
441= 3×3×7×7
Step II: From each pair of equal factors occuring in the prime factorisation, take one of the factors and write the product of these factors. The product so obtained is the square root of the given number.
Thus, √441=√(3×3)×(7×7).
Find the square root of 441 in prime factorisation method:
Step I: write the prime factorisation of 441
441= 3×3×7×7
Step II: From each pair of equal factors occuring in the prime factorisation, take one of the factors and write the product of these factors. The product so obtained is the square root of the given number.
Thus, √441=√(3×3)×(7×7).
Flowergirl:
good explanation
Ok. But what if we have for example √24 or √2? Or other examples different from the perfect square like 441?
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suppose we multiply 2 same numbers such as 2*2 the answer is 4.so when the question is asked what is the square root or 4 the answer is 2
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