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\(\frac{2^3.3^3.5^3.7.8}{3.2^4.5^3.14}=\frac{2^3.3^3.5^3.7.2^3}{3.2^4.5^3.2.7}\)
\(=\frac{2^6.3^3.5^3.7}{2^5.3.5^3.7}=\frac{2.3^2.1.1}{1.1.1.1}=2.3^2\)
\(=2.9=18\)
\(\frac{2^3.3^3.5^3.7.8}{3.2^4.5^3.14}=\frac{1.3^2.1.1.8}{1.2.1.2}=\frac{3.3.4}{2.1}=\frac{3.3.2}{1}=18\)
\(\frac{2^3.3^3.5^3.7.8}{3.2^4.5^3.14}\)mk viết như vầy bn cố gắng hiểu nhé:.
23.33.53.7.8/ 3.24.53.14
= 23.33.53.7.8/3.24.53.7.2
=23.33.53.8/3.24.53.2
=23.33.53.23/24.2.53
= 23.23.33.53/ 24.2.53
= 26. 33.53/ 25. 53
= 25.2.33.53/25.53
= 2.33/1
= 2. 27/1
= 54/1 = 54
Thế nha bn, chúc bn học tốt!
\(\frac{2^3.3^3.5^3.7.8}{3.2^4.5^3.14}=\frac{2^6.3^3.5^3.7}{2^5.7.5^3.3}=\frac{2^5.3.5^3.7.\left(2.3^2\right)}{2^5.3.5^3.7}=18\)
=\(\frac{2^3.3^3.8}{3.2^4.2}\)
=\(\frac{2^3.3^3.4}{3.2^4}\)
=\(\frac{3^2.4}{2}\)
=\(3^2.2\)
=9.2
=18
Ta có:
\(\frac{\left(-2\right)^3.3^3.5^3.7.8}{3.5^3.2^4.42}=\frac{\left(-2\right).\left(-2\right).\left(-2\right).3.3.3.5.5.5.7.2.2.2}{3.5.5.5.2.2.2.2.2.3.7}\)
\(=\frac{\left(-2\right)}{1}=-2\)
TA CÓ : \(\frac{2^3.3^4}{2^2.3^2.5}\)= \(\frac{2^3.3^4}{\left(2.3\right)^2.5}\)= \(\frac{2^3.3^4}{6^2.5}\)= \(\frac{2^3.3^4}{36.5}\)= \(\frac{8.81}{180}\)= \(\frac{648}{180}\)= 648 : 180 = 3,6 HOẶC \(\frac{648}{180}\)= \(\frac{18}{5}\)
\(\frac{\left(-2\right)^3.3^3.5^3.7.8}{3.5^3.2^4.42}=\)
\(-\frac{2^3.3^3.5^3.7.2^3}{3.5^3.2^4.2.3.7}=\)
\(-\frac{2^6.3^3.5^3.7}{2^5.3^2.5^3.7}=\)
\(-\left(2.3\right)=-6\)
B/ 233×32×53×7×8
3×23×2 ×53×7×2
=32×8
2×2
=18