giúp em vs mn, em cảm ơn [3^12.2^3+3^0.(3^15:3^3)]:3^10 ^=mũ (3^2=3 mũ 2)

2 câu trả lời

$[3^{12}.2^3+3^0.(3^{15}:3^3)]:3^{10}$

$=[3^{12}.2^3+3^{12}]:3^{10}$

$=[3^{12}.(2^3+1)]:3^{10}$

$=[3^{12}.(8+1)]:3^{10}$

$=[3^{12}.9]:3^{10}$

$=3^{12}.9:3^{10}$

$=3^{2}.9$

$=9.9$

$=81$

$→ a^m-a^n=a^{m-n}$

$#thanhmaii2008$

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