Math, asked by jaishankarverma62, 10 months ago

please solve in correct way​

Attachments:

Answers

Answered by ishani33
1

(a+b) ² = ++2ab

(3/4 a+2/9 b) ²

=(3/4 a)²+(2/9 b)² +2×3/4 a × 2/9 b

=9/16 a² + 4/81 b² + 2×3×2ab/4×9

=9/16 a² + 4/81 b² + 12ab/36

=9/16 a² + 4/81 b² + 1ab/3

=9/16 a² + 4/81 b² + 1ab/3 ➡️ answer.

Similar questions