=512. (2-128) +512.128

= 512. (2-128+128)

=512.2

=1024

Chúc bạn học tốt nha!

gửi bạn đáp án nè

Khó thì mới hỏi chứ vô duyên thúi

512.(2-128)-128.(-512)

=512.2-512.(-128)-128.(-512)

=512.2-[512.(-128)-128.(-512)]

=512.2-0

=1024

không sao

512 x ( 2 - 128 ) - 128 x ( -512 )

= 512 x ( -126 ) - ( -128 ) x 512

= 512 x [ ( -126 ) - ( -128 ) ]

= 512 x 2

= 1024

512 × (2 - 128) - 128 × (-512)

= 512 × (-126) - (-128) × 512

= 512 × [(-126) - (-128)]

= 512 × 2

= 1024

= 1024 nha

   512.(2-128)-128.(-512)

= [512.(2-128)]-[128.(-512)

= - 64512 - (- 65536)

= - 64512 + 65536

= 1024

\(512.(2-128)-128.(-512)\)

\([512.(2-128)]-[128.(-512)]\)

\(-64512-(-65536)\)

\(-64512+65536\)

\(1024\)

512.[2-128]-128.[-512]

=512.[-126]-128.[-512]

=[-512].126-128.[-512]

=[-512].[126-128]

=[-512].[-2]

=11024

=512 x 2 - 128 x 512 - (-512) x 128

=512x2-128x512+512x128

=512x2+0=1024

1024 , tick mk tick lại !!!

512 . ( 2 - 128 ) - 128 . ( - 512 ) = 512 . 2 - 512 . 128 +128 . ( - 512 ) =1024 - [ 512 . 128 + 128 .(-512) ] = 1024 - [128 .  (512 - 512) ] = 1024- [ 128 . 0 ] =1024

=512.(-126)-(-128).512

=512.[(-126)+128]=512.2=1024

= (512.2-512.128)-128.(-512)

=512.2-512.128-128.(-512)

=[512.128+128x (-512)]+512.2

=0+1024 

=1024

a) \(\left(-25\right).8.\left(-4\right).\left(-125\right).3\)

\(=\text{ }\left[\left(-25\right).\left(-4\right)\right].\text{ }\left[8.\left(-125\right)\right].3\)

\(=100.\left(-1000\right).3\)

\(=-100000.3\)

\(=-300000\)

b) \(27.\left(-17\right)+17.\left(-73\right)\)

\(=\left(-27\right).17+17.\left(-73\right)\)

\(=17\left[\left(-27\right).\left(-73\right)\right]\)

\(=17.\left(-100\right)\)

\(=-1700\)

c) \(512\left(2-128\right)-128\left(-512\right)\)

\(=512.2-512.128-128\left(-512\right)\)

\(=512.2-128\left[512+\left(-512\right)\right]\)

\(=1024-128.0\)

\(=1024-0\)

\(=1024\)

a, (-25).8.(-4).(-125).3

= (-25).(-8).(-4).(-125).(-3)

= {(-25).(-4)}.{(-8).(-125)}.(-3)

= 100.1000.(-3)

= 100000.(-3)

= -300000

b, 27.(-17)+17.(-73)

= 27.17+17.73

= 27.(17+73)

=27.90

=2430

c, 512.(2-128)-128.(-512)

= 512.(-2) - 512.128 - (-128).512

= { 512.{(-2)-128-(-128)}

= 512.{(-2).256}

=512.(-512)

= -262144

à cho mik xin lỗi câu c nha

\(512.\left(2-128\right)-128.\left(-512\right)\\ =512.\left(-126\right)+128.512\\ =-512.126+128.512\\ =-512\left(-126-128\right)\\ =-512.\left(-2\right)\\ =1024\)