( 1 +8+ 2+3+..... +8+ 9+10 ) x( 6x8-48)

=(1+2+3+.......+8+9+10)x 48-48

=(1+2+3+.........+8+9+10)x0

= 0
^    ^ chúc bạn học tốt k cho mình nha

Bằng 0 nhé

what the hell?

x8 - x x 2=48

x8-x2=48

x(8-2)=48

x6=48

x=48:6

X=8

ủng hộ nha

------------------------------

 x * 8 - x * 2  = 48

    x * ( 8 - 2 ) = 48

     x  *  6       = 48 

                x    = 48 : 6 = 8

x.8 - x.2 = 48

x. (8-2)  = 48

x. 6       = 48

=> x     = 8

Vậy ...

\(37\times46+37\times51+111\)

\(=37\times46+37\times51+37\times3\)

\(=37\times\left(46+51+3\right)\)

\(=37\times100\)

\(=3700\)

------------

\(172\times47+86\times8-34\times4\)

\(=172\times47+172\times4-34\times4\)

\(=172\times\left(47+4\right)-34\times4\)

\(=172\times51-34\times4\)

\(=172\times3\times17-17\times2\times4\)

\(=17\times\left(172\times3-2\times4\right)\)

\(=17\times\left(516-8\right)\)

\(=17\times508\)

\(=8636\)

------------

\(35\times215-35\times200-175\)

\(=35\times215-35\times200-35\times5\)

\(=35\times\left(215-200-5\right)\)

\(=35\times10\)

\(=350\)

------------

\(48\times56+28\times104\)

\(=48\times2\times28+28\times104\)

\(=28\times\left(48\times2+104\right)\)

\(=28\times200\)

\(=5600\)

88 800

261 304

không phải nhé

X8 LÀ X MŨ 8 HAY X*8 VẬY BẠN

77 x 8 + 15 x 8 +8 x 8

= 8 x ( 77 + 15 + 8 )

= 8 x 100

=800

77x8+15x8+8x8

= 8 x ( 77+15+8)

=8 x 100

= 800.

Tính nhanh

2) 77x 8 + 15 x 8 + 8 x 8

= ( 77 + 15 + 8 ) x 8 

= 100 x 8

= 800

1.2.3...9 - 1.2.3...8 - 1.2.3...8²

= 1.2.3...8.(9 - 1 - 8)

= 1.2.3...8.0

= 0

8  x 8 x 8 x 8 x 8 : 64 = 512

8 x 8 x 8 x 8 x 8 :64 

= 40 : 64 = 0,625

k mik nha

8 x 8 x 8 x 8 x 8 : 64

= 512

Hok tốt