Question

tìm x biết :  4^3x+1=64

ghi cách làm nha

Answer 1

\(4^3x+1=64\)

\(\Leftrightarrow64x=63\)

\(\Leftrightarrow x=\frac{63}{64}\)

Vậy \(x=\frac{63}{64}\)

Answer 2

Đề sai !!!

Xem lại đề nha !!!

Answer 3

4^{3x + 1} = 64

=> 4^{3x + 1}= 4³

=> 3x + 1 = 3

=> 3x =2

=> x =2/3

Answer 4

Nếu đề là \(4^{3x+1}=64\)

\(\Leftrightarrow4^{3x+1}=4^3\)

\(\Leftrightarrow3x+1=3\Leftrightarrow3x=2\)

\(\Leftrightarrow x=\frac{2}{3}\)

Answer 5

\(4^{3x+1}=64\)

\(\Rightarrow4^{3x+1}=4^3\)

\(\Rightarrow3x+1=3\)

\(\Rightarrow3x=2\)

\(\Rightarrow x=\frac{2}{3}\)

             Vậy....................

                                  HOK TỐT

Answer 6

\(4^{3x+1}=64\)

\(4^{3x+1}=4^4\)

\(\Rightarrow4^{3x+1}=4^3\)

\(\Rightarrow3x+1=3\)

\(\Rightarrow3x=2\)

\(\Rightarrow x=\frac{2}{3}\)

Học tốt nha!!!