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\(B=6^0+6^1+6^2+....+6^{100}\\ \Rightarrow6B=6+6^2+6^3+...+6^{101}\\ \Rightarrow5B=6^{101}-1\\ \Rightarrow5B+1=6^{101}-1+1=6^{101}\)
\(A=3^0+3^1+3^2+......+3^{2018}\)
\(3A=3.\left(3^0+3^1+3^2+.....+3^{2018}\right)\)
\(3A=3^1+3^2+3^3+........+3^{2019}\)
\(3A-A=\left(3^1+3^2+3^3+......+3^{2019}\right)-\left(3^0+3^1+3^2+.....+3^{2018}\right)\)
\(2A=3^{2019}-3^0\)
\(A=\left(3^{2019}-3^0\right):2\)
\(B=6^{10}+6^{11}+6^{12}+....+6^{2012}\)
\(6B=6.\left(6^{10}+6^{11}+6^{12}+.....+6^{2012}\right)\)
\(6B=6^{11}+6^{12}+6^{13}+.......+6^{2013}\)
\(6B-B=\left(6^{11}+6^{12}+6^{13}+......+6^{2013}\right)-\left(6^{10}+6^{11}+6^{12}+.......+6^{2012}\right)\)
\(5B=6^{2013}-6^{10}\)
\(B=\left(6^{2013}-6^{10}\right):5\)
17x - 4x = 88:86+(2016)0
<=> 82 + 1 = 13x
<=> 65 = 13x
<=> x = 5
\(17x-4x=8^8:8^6+\left(2016\right)^0\)
\(\Rightarrow13x=8^2+1\)
\(\Rightarrow13x=65\)
\(\Rightarrow x=5\)
Vậy \(x=5\)
a) 26 + 250 : 25 - 32
= 64 + 250 : 25 - 9
= 64 + 10 - 9
= 74 - 9
= 65
Mong giúp ≈≥ω≤≈