=[( 25 x 8 ) - 49 x 2 ) : 2 ] x 6 - 7 x 32
=[(200-98):2]×6-224
=(102:2)×6-224
=51×6-224
=306-224=82
ko chép đề nha

[( 5 ^2 x 2 ^3 ) - 7 ^2 x 2 ) : 2 ] x 6 - 7 x 2^5

=[( 25 x 8 ) - 49 x 2 ) : 2 ] x 6 - 7 x 32

=[(200-98):2]×6-224

=(102:2)×6-224

=51×6-224

=306-224=82