Question

(3​x - 1) mũ 3 = 64 . tìm x

Answer 1

\(\left(3x-1\right)^3=64\)

\(\left(3x-1\right)^3=4^3\)

3x - 1 = 4

3x = 4 + 1

3x = 5

x = 5/3

Answer 2

\(\left(3x-1\right)^3=64\)

\(\Leftrightarrow3x-1=4\)

\(\Leftrightarrow3x=5\Leftrightarrow x=\frac{5}{3}\)

Answer 3

\(\left(3x-1\right)^3=64\)

\(\left(3x-1\right)^3=4^3\)

\(3x-1=4\)

\(3x=4+1\)

\(3x=5\)

\(x=5:3\)

\(x=\frac{5}{3}\)

Answer 4

(3x - 1)³=64

(3x-1)³=4³

(3x-1)=4

3x=4+1

3x=5

x=\(\frac{5}{3}\)