Aptitude - Simplification - Discussion

Discussion Forum : Simplification - General Questions (Q.No. 14)
14.
(469 + 174)2 - (469 - 174)2 = ?
(469 x 174)
2
4
295
643
Answer: Option
Explanation:

Given exp. = (a + b)2 - (a - b)2
ab

   = 4ab
ab

   = 4 (where a = 469, b = 174.)

Discussion:
15 comments Page 2 of 2.

Abarna said:   9 years ago
@Amrit.

Very clear explanation. Thank you.

Ayushi said:   5 years ago
Thanks for explaining @Kalyan.

Harsh Kadam said:   3 years ago
We can also do it directly using (a+b) ^2 formula. And a-b^2 formula.
Taking 469*174 common. Then it gets divided by the denominator. After solving brackets. We get 4.

SHAIK ABDUL SALEEM said:   1 year ago
Very useful, Thanks all for explaining the answer.

Rahul said:   5 months ago
Thanks all for the explanation.


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