Question

3^2x . 27 = 3¹¹

Answer 1

\(3^{2x}.27=3^{11}\)

 \(3^{2x}.3^3=3^{11}\)

 \(3^{2x+3}=3^{11}\)

\(2x+3=11\)

\(2x=11-3\)

\(2x=8\)

\(x=4\)

Answer 2

3^2x . 27 = 3¹¹

=> 3^2x.3³ = 3¹¹

=> 3^{2x + 3} = 3¹¹

=>  2x + 3 = 11

=>  2x       = 11 - 3

=> 2x        = 8

=>   x        = 8 : 2

=>   x        = 4

Answer 3

\(3^{2x}.27=3^{11}\)

\(3^{2x}.3^3=3^{11}\)

\(3^{2x}=3^{11}:3^3\)

\(3^{2x}=3^8\)

\(2x=8\Leftrightarrow x=8:2=4\)

Answer 4

3^2x .27 = 3¹¹

=> 3^2x.3³ = 3¹¹

=> 3^{2x + 3} = 3¹¹

=> 2x + 3 = 11

=> 2x = 11 - 3

=> 2x = 8

=> x = 4

Answer 5

Lời giải 

\(3^{2x}.3^3=3^{11}\)

\(3^{2x}=3^{11}:3^3\)

\(3^{2x}=3^8\)

\(2x=8\)

\(x=8:2\)

\(x=4\)