A = [1104 - (25 . 8 + 40)] . 9 + 3¹⁶ : 3¹² + 17⁰ = [1104 - (200 + 40)] . 9 + 3^16-12 + 1 = (1104 - 240) . 9 + 3⁴ + 1

= 864 . 9 + 81 + 1 = 7776 + 82 = 7858

A= [1104 - (25.8+40)]:9+3^16.3^12+17^0

 = [1104 - (200+40)] : 9 +3^16-12+1

=[1104-240] : 9 + 3⁴+1

=864 :9 + 81 +1

=96+81+1

178

[545 - (45 + 4 x 25)] : 50 - 200 : 250 + 2¹⁵ : 2¹³

= [545 - (45 + 100)] : 50 - 200 : 250 + 2²

= (545 - 4500) : 50 - 200 : 254

= (-3955) : 50 + 200 : 254

= [(-3955) + 200] : (50 + 254)

= (-3755) : 304

= bạn tự tính nha

[504 - (25 x 8 + 70)] : 9 - 15 + 19⁰

= [504 - (200 + 70)] : 9 - 15 + 0

= (504 - 270) : 9 - 15

= 234 : 9 - 15

= 26 - 15

= 9

5 x {26 - [3 x 5 + 2 x 5 + 15] : 15}

= 5 x {26 - [(3 + 2) x 5) + 15] : 15}

= 5 x {26 - [5 x 5 + 15] : 15}

= 5 x [26 - (25 + 15) : 15]

= 5 x (26 + 25 - 15 : 15)

= 5 x (51 - 1)

= 5 x 50 = 250

d) [1104 - (25 x 8 + 40)] : 9 + 3¹⁶ : 3¹²

= [1104 - (200 + 40)] : 9 + 3⁴

= (1104 - 240) : 9 + 81

= 864 : 9 + 81

= 96 + 81

= 177

Học tốt!!!

[1104-(200+40)]:9+3^16-12

=[1104-240]:9+3⁴

=864:9+81

=96+81

=177

là 117 nha

=[1104-(200+40)]:9+9
=[1104-240]:9+9
=864:9+9
=105

\(-\dfrac{3}{16}+-\dfrac{3}{8}-\dfrac{5}{4}\)

\(=-\dfrac{3}{16}-\dfrac{3}{8}-\dfrac{5}{4}\)

\(=-\dfrac{3}{16}-\dfrac{6}{16}-\dfrac{20}{16}\)

\(=\dfrac{-3-6-20}{16}\)

\(=-\dfrac{29}{16}\)

\(\left(-\dfrac{25}{13}\right)+\dfrac{-9}{17}+\dfrac{12}{13}+\dfrac{25}{17}\)

\(=\left[\left(-\dfrac{25}{13}\right)+\dfrac{12}{13}\right]+\left[\left(-\dfrac{9}{17}+\dfrac{25}{17}\right)\right]\)

\(=-\dfrac{13}{13}+\dfrac{17}{17}\)

\(=-1+1\)

\(=0\)

giúp với

=\(\left[1104-\left(200+40\right)\right]:9+3^{16-12}\)

=\(\left[1104-240\right]:9+3^4\)

=\(864:9+3^4\)

=\(96+81\)

=177

nhớ k cho mình nha

\(1)\)\(-\dfrac{10}{11}.\dfrac{8}{9}+\dfrac{7}{18}.\dfrac{10}{11}\)

\(=\dfrac{10}{11}\left(-\dfrac{8}{9}+\dfrac{7}{18}\right)\)

\(=\dfrac{10}{11}\left(\dfrac{-16}{18}+\dfrac{7}{18}\right)\)

\(=\dfrac{10}{11}.\left(-\dfrac{1}{2}\right)=-\dfrac{5}{11}\)

\(2)\)\(\dfrac{12}{25}.\dfrac{23}{7}-\dfrac{12}{7}.\dfrac{13}{25}\)

\(=\dfrac{12}{7}.\dfrac{23}{25}-\dfrac{12}{7}.\dfrac{13}{25}\)

\(=\dfrac{12}{7}.\left(\dfrac{23}{25}-\dfrac{13}{25}\right)\)

\(=\dfrac{12}{7}.\dfrac{2}{5}=\dfrac{24}{35}\)

\(3)\)\(\dfrac{3}{7}.\dfrac{16}{15}-\dfrac{2}{15}.\dfrac{-3}{7}\)

\(=\dfrac{3}{7}.\dfrac{16}{15}-\dfrac{3}{7}.\dfrac{-2}{15}\)

\(=\dfrac{3}{7}.\left(\dfrac{16}{15}+\dfrac{2}{15}\right)\)

\(=\dfrac{3}{7}.\dfrac{18}{15}=\dfrac{18}{35}\)

\(4)\)\(-\dfrac{4}{13}.\dfrac{5}{17}+\dfrac{-12}{13}.\dfrac{4}{17}\)

\(=-\dfrac{4}{13}.\dfrac{5}{17}+\dfrac{-4}{13}.\dfrac{12}{17}\)

\(=-\dfrac{4}{13}.\left(\dfrac{5}{17}+\dfrac{12}{17}\right)\)

\(=-\dfrac{4}{13}.\dfrac{17}{17}=-\dfrac{4}{13}\)

`#040911`

`1)`

`-10/11 * 8/9 + 7/18 . 10/11`

`= 10/11 * (-8/9 + 7/18)`

`= 10/11 * (-1/2)`

`= -5/11`

`2)`

`12/25 * 23/7 - 12/7 *13/25`

`= 12/7 * 23/25 - 12/7 * 13/25`

`= 12/7 * (23/25 - 13/25)`

`= 12/7 * 2/5`

`= 24/35`

`3)`

`3/7 * 16/15 - 2/15 * (-3)/7`

`= 3/7 * (16/15 + 2/15)`

`= 3/7 * 6/5`

`= 18/35`

`4)`

`-4/13 * 5/17 + (-12)/13 * 4/17`

`= -4/17 * 5/13 + (-12)/13 * 4/17`

`= 4/17 * (-5/13 - 12/13)`

`= 4/17 * (-17)/13`

`= -4/13`