(8-3akar 2 ) ( 4akar 3 + 7 akar 5)

(8-3√2)(4√3+7√5)
=(8 x 4√3)+(8 x 7√5)-(3 x 4√2 x 3)-(3 x 7√2 x 5)
=32√3+56√5-12√6-21√10