212k views
3 votes
I need help with this. There are 3 other options. 2 only. 1 only. Or none of the above.

I need help with this. There are 3 other options. 2 only. 1 only. Or none of the above-example-1
User Snkashis
by
8.1k points

1 Answer

3 votes

Given: An expression-


√(36)+√(49)-√(16)

Required: To simplify the expression and determine the correct solution.

Explanation: The square root of a number can be simplified by factorizing the term inside the square root into the product of its factors as follows-


√(6*6)+√(7*7)-√(4*4)

Now, we take out a number outside the square root from the pairs of numbers to give the following-


6+7-4=9

Also, we know that the square of 9 is 81. Hence,


√(81)=9

Hence, the given expression is equal to 9 and the square root of 81.

Final Answer: Option A (1 and 4) is correct.

User Zanecola
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories