Question

(-6)³ .x²=-1944

Answer 1

\(\left(-6\right)^3\cdot x^2=-1944\)

=>\(216\cdot x^2=1944\)

=>\(x^2=9\)

=>\(\left[{}\begin{matrix}x=3\\x=-3\end{matrix}\right.\)

Answer 2

(-6)³ . x² = -1944

=> -216 . x² = -1944

=> x² = 9

=> x² = 3²  hoặc (-3)²

=> x = 3 hoặc (-3)