Question:
287 x 287 + 269 x 269 – 2 x 287 x 269 = ?
[A].534
446
354
324
287 x 287 + 269 x 269 – 2 x 287 x 269 = ?
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
| Given Exp. | = a2 + b2 – 2ab, where a = 287 and b = 269 |
| = (a – b)2 = (287 – 269)2 | |
| = (182) | |
| = 324 |