Question

$5 - (3a - b) { }^{2}$

Answer 1

Hello!

=> 5 - (3a - b)²

= 5 - (9a² + b² - 6ab)

[because, (a - b)= a² + b² -2ab]

= 5 - 9a² - b² + 6ab is the answer.


I hope you liked it.

Thank You!

Answer 2

hey dear friend here's ur answer :-)

5-(3a-b)^2

5-{(3a)^2+(b)^2-2×3a×b}

5-(9a^2+b^2-6ab)

5-9a^2-b^2+6ab ans....

hope it helps