36/9 : 5/14 + 36/9 : 2/14

= 36/9 : ( 5/14 + 2/14) 

= 36/9 : 2/7

=252/18

   có j sai sót mong em bỏ qua nhé- tại chị học qua lâu rùi nên ko nhớ lăm!!!!!:3

sorry pé nhá

  36/9 : ( 5/14 + 2/14 )

= 36/9 : 7/14

( 36/9 = 4)

=4: 7/14

=56/7 

 nhá hồi nãy chị làm nhầm:)

toán mà sao nói là tiếng Anh

\(x^2-\left(-\frac{5}{36}\right)=\frac{14}{36}\)

          \(x^2+\frac{5}{36}=\frac{14}{36}\)

                        \(x^2=\frac{14}{36}-\frac{5}{36}\)

                        \(x^2=\frac{1}{4}\)

\(\Rightarrow x\in\left\{\frac{-1}{2};\frac{1}{2};\frac{1}{-2};\frac{-1}{-2}\right\}\)

Vậy \(x\in\left\{\frac{-1}{2};\frac{1}{2};\frac{1}{-2};\frac{-1}{-2}\right\}\)

\(x^2-\left(\frac{-5}{36}\right)=\frac{14}{36}\Rightarrow x^2=\frac{14}{36}+\left(\frac{-5}{36}\right)=\frac{14}{36}-\frac{5}{36}=\frac{9}{36}=\frac{1}{4}\)

\(\Rightarrow x^2=\frac{1}{4}\Rightarrow x^2=\pm\left(\frac{1}{2}\right)^2\)

vậy x = \(\frac{1}{2}\) hoặc x = \(\frac{-1}{2}\)

X\(^2\)-(-5/36)=14/36

X.x=14/36+(-5/36)

X.x =19/36

minhf caanf gaaps nhes

lạy cụ

\(\dfrac{4^9\cdot36+64^4}{100\cdot16^4}=\dfrac{2^{20}\cdot3^2+2^{24}}{2^{18}\cdot5^2}=\dfrac{2^{20}\left(3^2+2^4\right)}{2^{18}\cdot5^2}=4\)

 ko bt

\(a,56-36:\left(-9\right)+3.\left(-2\right)^2\)

\(=56+4+12=72\)

\(b,36-16\left[2\left(14-15\right)^{21}\right]+14\)

\(=36-12\left[2-\left(-1\right)^{21}\right]+14\)

\(=36-16\left(2+1\right)+14\)

\(=36-48+14=2\)

\(c,2\left(-3\right)^2-3\left(-2\right)^3.\left(-2\right)^3+8\)

\(=2.9-3.8.8+8=218\)

\(d,\left(-8\right)25\left(-2\right)4\left(-5\right)125=\left(-8\right)125\left(-2\right)\left(-5\right)25.4=-1000.10.100=-1000000\)

\(56-36:\left(-9\right)+3.\left(-2\right)^2\)

\(=56+4+3.4\)

\(=60+12=72\)

\(36-16.\left|2-\left(14-15\right)^{21}\right|+14\)

\(=36-16.\left(2+1\right)+14\)

\(=36-48+14=2\)

\(2.\left(-3\right)^2-3.\left(-2\right)^3.\left(-2\right)^3+8\)

\(=2.9-3.8.8+8\)

\(=18-192+8=-166\)

\(\left(-8\right).25.\left(-2\right).4.\left(-5\right).125\)

\(=\left[\left(-8\right).125\right].\left(25.4\right).\left[\left(-5\right).\left(-2\right)\right]\)

\(=\left(-1000\right).100.\left(-10\right)=1000000\)

bạn làm chuẩn ko phải chỉnh rùi mà

     tick nha tran thanh thao

12/36 = 12 :12 / 36 : 12 = 1/3

14/28 = 14 : 14 / 28 : 14 = 1/2

đúng rồi bạn tran thanh thao ạ