Question

-a[a+{a+b-2a-(a-b)}-b]​

Answer 1

$\pink{\bold{\huge{Answer:—}}}$

=> -a[a+{a+b-2a-(a-b)}-b]

=> -a[a+{a+b-2a-a+b-b}]

=> -a[a-2a+b]

=> -a[-a+b]

=> a^2 + b