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Bài 5:
1) 16 . 4 . 4 . 2 . 2 . 8 = 2¹³
2) 100 . 10 . 2 . 5 = 2 . 5
3) 6 . 2 . 12 . 4 = 2 . 3²
4) 3 . 9 . 27 . 3 = 3
5) 2 . 3 . 6 . 6 . 12 = 2 . 3
6) 5 . 2 . 10 . 20 = 5³ . 2
7) 8 . 8 . 64 . 2 . 2 = 2¹
8) 27 . 9 . 9 . 3 . 3 = 3
9) 3 . 15 . 25 . 9 = 3 . 5³
10) 8 . 8 . 10 . 25 . 16 = 2¹ . 5³
Hãy giúp mọi người biết câu trả lời này thế nào?
Đáp án:
$\text{1) 16.4.4.2.2.8}$
$\text{= $2^{4}$.$2^{2}$.$2^{2}$.2.2.$2^{3}$}$
$\text{= $2^{13}$}$
$\text{2) 100.10.2.5}$
$\text{= $2^{2}$.$5^{2}$.2.5.2.5}$
$\text{= ($2^{2}$.2.2).($5^{2}$.5.5)}$
$\text{= $2^{4}$.$5^{4}$}$
$\text{3) 6.2.12.4}$
$\text{= 2.3.2.$2^{2}$.3.$2^{2}$}$
$\text{= (2.2.$2^{2}$.$2^{2}$).(3.3)}$
$\text{= $2^{6}$.$3^{2}$}$
$\text{4) 3.9.27.3}$
$\text{= 3.$3^{2}$.$3^{3}$.3}$
$\text{= $3^{7}$}$
$\text{5) 2.3.6.6.12}$
$\text{= 2.3.2.3.2.3.$2^{2}$.3}$
$\text{= (2.2.2.$2^{2}$).(3.3.3.3)}$
$\text{= $2^{5}$.$3^{4}$}$
$\text{6) 5.2.10.20}$
$\text{= 5.2.2.5.$2^{2}$.5}$
$\text{= (5.5.5).(2.2.$2^{2}$)}$
$\text{= $5^{3}$.$2^{4}$}$
$\text{7) 8.8.64.2.2}$
$\text{= $2^{3}$.$2^{3}$.$2^{6}$.2.2}$
$\text{= $2^{14}$}$
$\text{8) 27.9.9.3.3}$
$\text{= $3^{3}$.$3^{2}$.$3^{2}$.3.3}$
$\text{= $3^{9}$}$
$\text{9) 3.15.25.9}$
$\text{= 3.3.5.$5^{2}$.$3^{2}$}$
$\text{= (3.3.$3^{2}$).(5.$5^{2}$ )}$
$\text{= $3^{4}$.$5^{3}$}$
$\text{10) 8.8.10.25.16}$
$\text{= $2^{3}$.$2^{3}$.2.5.$5^{2}$.$2^{4}$}$
$\text{= ($2^{3}$.$2^{3}$.2.$2^{4}$).(5.$5^{2}$)}$
$\text{= $2^{11}$.$5^{3}$}$
$@nguyendiepphuong59391$
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