A)
-65.(87-17)-87.(17-65)
=-65.87-(-65).17-87.17-87.(-65)
=-(-65).17-87.17
=65.17-87.17
=17.(65-87)
=17.(-22)
=-374
B)
72.(28-49)+28.(-49-72)
= 72.28-72.49+28.(-49)-28.72
= -72.49+28.(-49)
= 72.(-49)+28.(-49)
= (-49).(72+28)
= -49.100
=-4900
C)
18-(-27)+63-(63+27)
= 18+27+63-63-27
= 45+0-27
= 45+(-27)
=45-27
=18
KICK MÌNH NHÁ
a) \(-65.\left(87-17\right)-87.\left(17-65\right)\)
\(=-65.87+65.17-87.17+87.65\)
\(=17.\left(65-87\right)\)
\(=17.\left(-22\right)=-374\)
thiếu naruto bạn ơi kêu có kick mình đi
sakura thích sasuke lắm mà :Đ
