Question

finding square root of 7921 by division method​

Answer 1

Answer:

89

Step-by-step explanation:

square of 7921 is 89

we should use divisibilityrules for solving

Answer 2

Answer:

The Answer Is 89

Step-by-step explanation:

In the question, we have to find the square root of the number 7921.

So, here we will find the prime factorization of the number 7921.

So we will get:

⇒7921=89×89⇒7921=892

Now, the square root of 7921 is written as 7921−−−−√

So here we will take the square root as both the sides of the 7921=892

to get the square root 7921−−−−√

.

Now, taking the square root both sides in above equation, we get:

⇒7921−−−−√=892−−−√

Now, it is just required to further simplify the above expression. So, we will do that as follows:

⇒7921−−−−√=892−−−√⇒7921−−−−√=(892)12∵b√=(b)12⇒7921−−−−√=(89)∵(a2)12=a

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So finally, the square root of 7921 is 89.