Discuss Forum

1. If x=3 and (x-y)2=4, then y could be ----

  • A. -5
  • B. -5
  • C. -5
  • D. -5

Answer: Option B

Explanation:

দেওয়া আছে, x = 3

প্রদত্ত রাশি, (x - y)2 = 4

(3 - y)2 = 4 [ x এর মান বসিয়ে]

6 - 2y = 4

–2y = 4 - 6

- 2y = –2

y = –2/ - 2

y = 1


Post your comments here:

Name:
Mobile:
Email:(Optional)

» Your comments will be displayed only after manual approval.