Question

Giúp mình zới ạ

Answer 1

Sửa đề: \(\frac{\left(x-2\right)^3}{8}=-\frac{27}{64}\cdot\frac35+\frac{-27}{64}\cdot\frac25\)

Ta có: \(\frac{\left(x-2\right)^3}{8}=-\frac{27}{64}\cdot\frac35+\frac{-27}{64}\cdot\frac25\)

=>\(\frac{\left(x-2\right)^3}{8}=-\frac{27}{64}\left(\frac35+\frac25\right)=-\frac{27}{64}=\left(-\frac34\right)^3\)

=>\(\frac{x-2}{2}=-\frac34\)

=>\(x-2=-\frac32\)

=>\(x=-\frac32+2=\frac12\)