Question

{[5(4-3)(6+7)+4(5-2)]-[8(5+1)-10]+2}[2(3+2)+1]

Answer 1

{[5(4-3)(6+7)+4(5-2)]-[8(5+1)-10]+2}[2(3+2)+1]
={[5(1)(13)+4(3)]-[8(6)-10]+2}[2(5)+1]
={[65+12]-[48-10]+2} [10+1]
={77-[38]+2}[11]
=41(11)
=451