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a) 76:74 = 76−4 = 72
b) 1091100: 1091100 = 1091100−100 = 10910
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a: \(8=2^3\)
\(125=5^3\)
\(27=3^3\)
\(64=8^2\)
\(81=9^2\)
\(1000=10^3\)
\(10000000=10^7\)
1000..000=10k
b: \(7\cdot7\cdot7=7^3\)
\(7\cdot8\cdot7\cdot25=7^2\cdot200=70^2\cdot2^2\)
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a) 53.57 = 53+7 = 510
b) 24.25.29=24+5+9 = 218
c) 102.104.106.108 = 102+4+6+8 = 1020.
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\(3^2\cdot4^3-3^2+333\)
\(=3^2\left(4^3-1\right)+333\)
\(=3^2\cdot63+333\)
\(=3^4\cdot7+3^2\cdot37\)
\(=3^2\left(63+37\right)\)
\(=30^2\)
B=32⋅43−32+333
B=32(43−1)+333
B=32⋅63+333
B=34⋅7+32⋅37
B=32(63+37)
B=302
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a. \(3^4.3^5=3^9\)
\(16.2^9=2^4.2^9=2^{13}\)
\(16.32=2^4.2^5=2^9\)
b. \(12^8.12=12^9\)
\(243:3^4=3^5:3^4=3\)
\(10^9:10000=10^9:10^4=10^5\)
c. \(4.8^6.2.8^3=2^2.2^{18}.2.2^9=2^{30}\)
\(12^2.2.12^3.6=12^2.12.12^3=12^6\)
\(6^3.2.6^4.3=6^3.6.6^4=6^8\)
\(a) 3^{15} : 3^5 =3^{(15-5)}=3^{10}\)
\(b) 4^6 : 4^6=1^1 \)
\(c) 9^8 : 3^2=(3^2)^8:3^2=3^{16}:3^2=3^{14}\)
_Học tốt_
a) 310
b)1