Câu hỏi của Trần Văn Thành

Question

Rút gọn:

$N=\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}$

Thanh Hằng Nguyễn · Accepted Answer

$N=\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}=\frac{2^{12}.3^{15}+2^9.3^9.2^3.3.5}{2^{12}.3^{12}-2^{11}.3^{11}}=\frac{2^{12}.3^{15}+2^{12}.3^{10}.5}{2^{12}.3^{12}-2^{11}.3^{11}}=\frac{2^{12}.3^{10}\left(3^5+5\right)}{2^{11}.3^{11}\left(2.3-1\right)}$

Câu trả lời:

$N=\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}=\frac{2^{12}.3^{15}+2^9.3^9.2^3.3.5}{2^{12}.3^{12}-2^{11}.3^{11}}=\frac{2^{12}.3^{15}+2^{12}.3^{10}.5}{2^{12}.3^{12}-2^{11}.3^{11}}=\frac{2^{12}.3^{10}\left(3^5+5\right)}{2^{11}.3^{11}\left(2.3-1\right)}$

Nguyễn Thị Ngọc Ánh · Answer

cho mk sửa lại xíu:

$\frac{2^{12}.3^{10}\left(1+5\right)}{2^{11}.3^{11}.5}=\frac{2.6}{3.5}=\frac{12}{15}=\frac{4}{5}$

mk sai xíu. hihi, học tốt nhé !

Câu trả lời:

cho mk sửa lại xíu:

$\frac{2^{12}.3^{10}\left(1+5\right)}{2^{11}.3^{11}.5}=\frac{2.6}{3.5}=\frac{12}{15}=\frac{4}{5}$

mk sai xíu. hihi, học tốt nhé !

Ngo Tung Lam · Answer

$N=\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}$

$N=\frac{4^6.9^5+6^9.120}{4^8.9^6-6^9.6^2}$

$N=\frac{36^5.4+36^4.6.6.20}{36^5.576-36^4.6.6.36}$

$N=\frac{36^5.4+36^5.20}{36^5.576-36^5.36}$

$N=\frac{36^5.\left(4+20\right)}{36^5.\left(576-36\right)}$

$N=\frac{36^5.24}{36^5.540}$

$N=\frac{24}{540}$

$N=\frac{2}{45}$

Vậy $N=\frac{2}{45}$

Câu trả lời:

$N=\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}$

$N=\frac{4^6.9^5+6^9.120}{4^8.9^6-6^9.6^2}$

$N=\frac{36^5.4+36^4.6.6.20}{36^5.576-36^4.6.6.36}$

$N=\frac{36^5.4+36^5.20}{36^5.576-36^5.36}$

$N=\frac{36^5.\left(4+20\right)}{36^5.\left(576-36\right)}$

$N=\frac{36^5.24}{36^5.540}$

$N=\frac{24}{540}$

$N=\frac{2}{45}$

Vậy $N=\frac{2}{45}$

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