(75.54+175.54):(20.25.125-625.75)

=(4050+9450):(62500-46875)

=13500:15625

0,864 like nếu thích nha

like nha

`(20.2^4+12.2^4-48.2^2):8^2`

`=(32.2^4-12.2^4):8^2`

`=[2^4.(32-12)]:8^2`

`=20.2^4:8^2`

`=20.16:64`

`=5`

Ta có: \(\left(20\cdot2^4+12\cdot2^4-48\cdot2^2\right):8^2\)

\(=\left(32\cdot2^4-12\cdot2^4\right):2^6\)

\(=20\cdot\dfrac{2^4}{2^6}\)

=5

=(75.5⁴+175.5⁴):(20.25.125-625.75)

=(75.625+175.625):(62500-46875)

=(48675+109375):15625

=158050:15620

=10,1184379

a) \(\left(20.2,4+12.2,4-48.2,4\right):2\)

\(=\left[2^4.\left(20+12-48\right)\right]:2=2^4.\left(-16\right):2=\left(2^4:2\right).\left(-16\right)=8.\left(-16\right)=-128\)

b)\(\left(75.5^4+175.5^4\right):\left(20.25.125-625.75\right)\)

\(=\left[5^4.\left(75+175\right)\right]:\left[5.\left(4.5.25-125.15\right)\right]\)

...............

c)\(100-\left(75-3^2\right)=100-75+9=34\)

chúc cậu học tốt:) 

nếu được thì làm quen ạ<3

(75.5⁴+175.5⁴):(20.25.125-625.75)= (75.625+175.625):(62500-46875)

                                                        = 156250:15625= 10

\(\frac{75.5^4+175.5^4}{20.25.125+625.75}\)

=\(\frac{3.25.5.125+7.25.625}{4.5.25.125+625.3.25}\)

=\(\frac{3+7}{4+3}\)

=\(\frac{10}{7}\)