42x6+23x4-21x5
=252+92-105
=344-105
=239
42x6+23x4-21x5
= 252+92-105
=344-105
=239
42 x 6 + 23 x 4 - 21 x 5
= 252 + 92 - 205
= 344 - 105
= 239
42x6+23x4-21x5
=252+92-105
=344-105
=239
42.6+23.4-21.5
=252+92-105
=344-105
=239
42 x 6 + 23 x4 - 21 x 5
= 252 + 92 - 105
= 344 - 105
= 239