KQ NÈ E ƠI

327 x 5 + 327 + 327 + 327 x 3

= 327 x 5 + 327 x 1 + 327 x 1 + 327 x 3

= 327 x ( 5 + 1 + 1 +3 )

= 327 x            10

3270

CHÚC EM HỌC TỐT NHỚ TICK CHO A NHA

=1635+327+327+981

=3270

đúng thì nhớ tick cho mình nhe,mình cảm ơnn

ko biết

A = \(\dfrac{27}{512}\) \(\times\) \(\dfrac{327}{213}\) \(\times\) \(\dfrac{512}{57}\) \(\times\) \(\dfrac{213}{54}\) \(\times\) \(\dfrac{57}{327}\)

A = \(\dfrac{27\times327\times512\times213\times57}{54\times327\times512\times213\times57}\) 

A = \(\dfrac{27}{54}\)

A = \(\dfrac{1}{2}\)

Sửa đề: Tìm x \(\dfrac{x+2}{327}+\dfrac{x+3}{326}+\dfrac{x+4}{325}+\dfrac{x+5}{324}+\dfrac{x+349}{5}=0\)

Bài giải

\(\dfrac{x+2}{327}+\dfrac{x+3}{326}+\dfrac{x+4}{325}+\dfrac{x+5}{324}+\dfrac{x+349}{5}=0\)

\(\Leftrightarrow\dfrac{x+2}{327}+\dfrac{x+3}{326}+\dfrac{x+4}{325}+\dfrac{x+5}{324}+\dfrac{x+329+20}{5}=0\)

\(\Leftrightarrow\dfrac{x+2}{327}+\dfrac{x+3}{326}+\dfrac{x+4}{325}+\dfrac{x+5}{324}+\dfrac{x+329}{5}+\dfrac{20}{5}=0\)

\(\Leftrightarrow\dfrac{x+2}{327}+\dfrac{x+3}{326}+\dfrac{x+4}{325}+\dfrac{x+5}{324}+\dfrac{x+329}{5}+4=0\)

\(\Leftrightarrow\dfrac{x+2}{327}+1+\dfrac{x+3}{326}+1+\dfrac{x+4}{325}+1+\dfrac{x+5}{324}+1+\dfrac{x+329}{5}=0\)

\(\Leftrightarrow\dfrac{x+329}{327}+\dfrac{x+329}{326}+\dfrac{x+329}{325}+\dfrac{x+329}{324}+\dfrac{x+329}{5}=0\)

\(\Leftrightarrow\left(x+329\right)\left(\dfrac{1}{327}+\dfrac{1}{326}+\dfrac{1}{325}+\dfrac{1}{324}+\dfrac{1}{5}\right)=0\)

\(\Rightarrow x+329=0\). Do \(\dfrac{1}{327}+\dfrac{1}{326}+\dfrac{1}{325}+\dfrac{1}{324}+\dfrac{1}{5}\ne0\)

\(\Rightarrow x=-329\)

y x ( 26 + 327 ) = 327 x 7 + 26 x 7 

y x 353  = 2471

  y = 2471 : 353 

  y = 7

y x (25 + 327) = 327 x 7 + 26 x 7

         y x 352 = (327 + 26) x 7

        y x 352 = 353 x 7

         y x 352 = 2471

                  y = 2471 : 352

                 y = 2471/352

đúng thì ủng hộ vs

sorry tính lộn

y x (26 + 327) = 327 x 7 + 26 x 7

         y x 353 = 2471

                 y = 2471 : 353 

                 y  = 7

bài kia lộn nha

53 x 4 x 3 x 25 =  53 x ( 4 x 25 ) x 3

                         = 53 x 100 x 3

                         = 15900

327 x 73 + 27 x 327 = 327 x ( 73 + 27 )

                                 = 327 x 100

                                 = 32700

Hok Tốt nhen

a) \(52\times4\times3\times25\)

\(=\left(52\times3\right)\times\left(4\times25\right)\)

\(=156\times100\)

\(=15600\)

b) \(327\times73+27\times327\)

\(=327\left(73+27\right)\)

\(=327\times100\)

\(=32700\)

\(a,97\times327+327\times3\)

\(=327\times\left(97+3\right)\)

\(=327\times100\)

\(=32700\)

\(b,\frac{1}{7}\times\frac{4}{23}+\frac{1}{7}\times\frac{25}{23}+\frac{1}{7}\times\frac{17}{23}+5\times\frac{1}{7}\)

\(=\frac{1}{7}\times\left(\frac{4}{23}+\frac{25}{23}+\frac{17}{23}+5\right)\)

\(=\frac{1}{7}\times7\)

\(=1\)

a) 97 x 327 + 327 x 3

   = (97 + 3) x 327

   = 100 x 327 = 32700

b) \(\frac{1}{7}\times\frac{4}{23}+\frac{1}{7}\times\frac{25}{23}+\frac{1}{7}\times\frac{17}{23}+5\times\frac{1}{7}\)

   \(=\frac{1}{7}\times\left(\frac{4}{23}+\frac{25}{23}+\frac{17}{23}+5\right)\)

    \(=\frac{1}{7}\times7=\frac{7}{7}=1\)