BD Merit - Freelancing, BCS, Bank, Primary, Admission, NTRCA

1 . x2+y2+b=8,xy=7

View Answer

Workspace

Report

Answer: Option C

Explanation:

দেওয়া আছে, x^{2} + y^{2} = 8 এবং xy = 7 এখন, x^{2} + y^{2} = 8 {(x + y)}^{2} - 2 xy = 8 (x + y) - 2 \times 7 = 8 {(x + y)}^{2} = 22