Question

Tìm x biết:

(3/2)¹².x = (3/2) ¹⁵

Answer 1

(3/2)^12 . x =(3/2)^15

x = (3/2)^15 :(3/2)^12

x =(3/2) ^3

x = 27/8

Answer 2

\(\left(\dfrac{3}{2}\right)^{12}.x=\left(\dfrac{3}{2}\right)^{15}\)

\(x=\left(\dfrac{3}{2}\right)^{15}:\left(\dfrac{3}{2}\right)^{12}\)

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

\(x=\dfrac{27}{8}\)

Vậy x=\(\dfrac{27}{8}\)