\(\dfrac{3}{8}+97,42=97,42+0,375=97,795\)
So sánh A=3/8^3+7/8^4; B=7/8^3+3/8^4
(8^9*8^3+8^20/8^8)*(1+2+3+4+5+...+99+100)*987654321
\(b) 5^{x+4} - 3 . 5^{x+3} = 2. 5^{11} \)
\(c) 2 . 3^{x+2} + 4 . 3^{x+1} = 10 . 3 ^{6}\)
\(d) 6 . 8 ^ {x-1} + 8 ^ {x+1} = 6 . 8^ {19} + 8 ^ {21}\)
-3/5 * (-3)8 - 12/5 / (1/3)8 - 38
tìm x :
\(\frac{5}{8}.8^{x+2}-\frac{3}{5}.8^x=\frac{5}{3}.8^{11}-\frac{3}{5}.8^9\)
|-2/3 x +3/8| (-8/5)=-8/15
7^80/(-1 3^4)-2^9/(8-8^3)--5^24*(-10^3+2 8^15)^2
8/5 x 2/3 + 8/5 x 1/3 - 8/5
a,\(B=\frac{4^{10}+8^4}{4^5+8^6}\)
b,\(C=\frac{1+3^4+3^8+3^{12}}{1+3^2+3^4+3^6+3^8+3^{10}+3^{12}+3^{14}}\)
