= 2015 + 5 x [300-100]
= 2015 + 5 x 200
= 2015 + 1000
= 3015
a,2015 + 5.[300-(17-7)^2]
=2015 + 5.[300-10^2]
=2015 + 5.[300-100]
=2015 + 5.200
=2015 + 1000
=1015.
2015 + 5.[300-(17-7)2]
= 2015 + 5.[300-102]
= 2015 + 5.[300-100]
= 2015 + 5.200
= 2015 + 1000
= 3015
2015+5.[300-(17-7)2]
=2015+5.[300-102]
=2015+5.280
=2015+1400
=3415
2015 + 5 . [ 300 - ( 17 - 7 ) 2 ]
= 2015 + 5 . [ 300 - 102 ]
= 2015 + 5 . [ 300 - 100 ]
= 2015 + 5 . 200
= 2015 + 1000
= 3015
chính xác 100% :)
a) 2015 + 5 . [300 - (17 - 7)2]
= 2015 + 5 . [300 - 102]
= 2015 + 5 . [300 - 100]
= 2015 + 5 . 200
= 2015 + 1000
= 3015
a) 2015 + 5.[ 300 - ( 17 - 7 )2]
= 2015 + 5.[ 300 - 102 ]
= 2015 + 5.[ 300 - 100 ]
= 2015 + 5. 200
= 2015 + 1000
= 3015