Question

(2-3x)³  *3¹²=18⁶

X bằng bao nhiêu vậy ạ? Bằng  -1/3 đúng ko?

Answer 1

\(\left(2-3x\right)^3.3^{12}=18^6\)

=>\(\left(2-3x\right)^3.3^{12}=2^6.\left(3^2\right)^6\)

=>\(\left(2-3x\right)^3.3^{12}=2^6.3^{12}\)

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

=>\(\left(2-3x\right)^3=4^3\)

=>2-3x=4

=>3x=-2

=>x=\(\frac{-2}{3}\)

Answer 2

x=-2/3 nha b

Answer 3

mơn nha

Answer 4

Sai rồi nha bạn,phải bằng

\(-\dfrac{2}{3}\)