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(–2) . (–2) . (–2) . (–3) . (–3) . (–3) = (–2)3 . (–3)3 = [(-2). (-3)]3 = 63
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\(\begin{array}{l}{3^3}{.3^4} = {3^{3 + 4}} = {3^7};\\{10^4}{.10^3} = 10^{4+3}= {10^7};\\{x^2}.{x^5} = x^{2+5} = {x^7}.\end{array}\
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a) (-5) . (-5) . (-5) . (-5) . (-5) = (-5)5
b) (-2) . (-2) . (-2) . (-3) . (-3) . (-3) = (-2)3.(-3)3
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\(2^3.2^2.8^3\)
\(=2^3.2^2.\left(2^3\right)^3\)
\(=2^3.2^2.2^9\)
\(=2^{3+2+9}=2^{14}\)
\(2^3.2^2.8^3\)
\(=2^{3+2}.8^3\)
\(=2^5.8^3\)
\(=2^5.2^9\)
\(=2^{5+9}\)
\(=2^{14}\)
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Ta có :
( - 2 ) . ( -2 ) . ( -2 ) . ( - 3 ) . ( - 3 ) . ( -3 )
= ( - 2 )3 . ( - 3 )3
= [ ( - 2 ) . ( -3 ) ]3
= 6 3
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Đáp án là C
(-2).(-2).(-2).(-3).(-3).(-3) = [(-2).(-3)].[(-2).(-3)].[(-2).(-3)] =6.6.6 = 6 3
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\(64^3.256^2=\left(4^3\right)^3.\left(4^4\right)^2=4^9.4^8=4^{17}\)
D=64.64.64.256.256 D=8^8.8^8.8^8.16^16.16^16 D=8^8+8+8.16^16+16 D=8^24.16^32
\(\left(-2\right).\left(-2\right).\left(-2\right).\left(-3\right).\left(-3\right).\left(-3\right)=\left(-2\right)^3.\left(-3\right)^3=\left[\left(-2\right).\left(-3\right)\right]^3=6^3\)
(-2)3.(-3)3