Question

(x-3/8)3=-8

*Chú ý: Số 3 ngoài ngoặc là số mũ

Giúp với :3

Answer 1

x= -1.4

Answer 2

\(\left(x-\dfrac{3}{8}\right)^3=-8\\ \Rightarrow\left(x-\dfrac{3}{8}\right)^3=\left(-2\right)^3\\ \Rightarrow x-\dfrac{3}{8}=-2\\ \Rightarrow x=-\dfrac{13}{8}\)

Answer 3

(x-\(\dfrac{3}{8}\))³ = 8

(x-\(\dfrac{3}{8}\))³ = 2³

x-\(\dfrac{3}{8}\) = 2

x = 2 + \(\dfrac{3}{8}\)

x = \(\dfrac{19}{8}\)

Answer 4

\(\left(x-\dfrac{3}{8}\right)^3=-8\)

\(\left(x-\dfrac{3}{8}\right)^3=-2^3\)

\(\Rightarrow x-\dfrac{3}{8}=2\)

\(x=2+\dfrac{3}{8}\)

\(\Rightarrow x=...\)

Answer 5

Ta có: \(\left(x-\dfrac{3}{8}\right)^3=-8\)

\(\Leftrightarrow x-\dfrac{3}{8}=-2\)

hay \(x=-\dfrac{13}{8}\)