Aptitude - Square Root and Cube Root - Discussion
Discussion Forum : Square Root and Cube Root - General Questions (Q.No. 9)
9.
The square root of (7 + 35) (7 - 35) is
Answer: Option
Explanation:
| (7 + 35)(7 - 35) | = | (7)2 - (35)2 | = 49 - 45 = 4 = 2. |
Discussion:
24 comments Page 2 of 3.
Pradhi said:
9 years ago
The answer should be 4 only. There is no whole square root is given in question.
Shilpa sudhan said:
9 years ago
@Joe.
(3R5)^2 = 3 to the power 2 and root 5 to the power 2 root 5 to the power 2 can be written as root 5 into root 5 which is equal to 5 now we get 3^2 * 5 = 45.
(3R5)^2 = 3 to the power 2 and root 5 to the power 2 root 5 to the power 2 can be written as root 5 into root 5 which is equal to 5 now we get 3^2 * 5 = 45.
(1)
Swathi said:
9 years ago
Please solve this question in the easy way of method.
Anil said:
9 years ago
3√3 * (4) how to solve this?
Please help me.
Please help me.
Vidya Channabasava Kabber said:
8 years ago
The answer should be 4. How it is 2. Can you explain?
Rafeeq said:
8 years ago
In the question, it is mentioned Square root of....
And the given no is (a+b)(a-b) form. After solving using this formula you will get 4 as the answer. Now note the question, it is mentioned as the square root of. Hence we have to take the whole square root. Hope my answer will be understood by everyone.
And the given no is (a+b)(a-b) form. After solving using this formula you will get 4 as the answer. Now note the question, it is mentioned as the square root of. Hence we have to take the whole square root. Hope my answer will be understood by everyone.
Sreekanth said:
8 years ago
Here square root is already there.
So, a+b * a-b = a2-b2. so, square root a2-b2. So answer is 2 only.
So, a+b * a-b = a2-b2. so, square root a2-b2. So answer is 2 only.
Priya said:
7 years ago
@All.
It is mentioned that the square root of (find the square root of a given item), by solving we will get 4. Take the square root of 4 the answer is 2.
It is mentioned that the square root of (find the square root of a given item), by solving we will get 4. Take the square root of 4 the answer is 2.
Sonam said:
6 years ago
Sir, how come 45? please tell me.
Sweety said:
6 years ago
How come 45?
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