\(\left(2x-15\right)^5=\left(2x-15\right)^3\)
\(\Leftrightarrow\left(2x-15\right)^5-\left(2x-15\right)^3=0\)
\(\Leftrightarrow\left(2x-15\right)^3\left[\left(2x-15\right)^2-1\right]=0\)
\(\Leftrightarrow\left(2x-15\right)^3\left(2x-16\right)\left(2x-14\right)=0\)
\(\Leftrightarrow x=\frac{15}{2};8;7\)
(2x-15)^5=(2x-15)^3
(2x-15)5=(2x-15)3
( 2x - 15 ) ^ 5 = ( 2x -15 ) ^ 3
Tim x , : a)(2x-15)^5=(2x-15)^3
Tình hợp lý nếu có thể :
-5/2x 2/11+-5/7x 9/11+15/7
Tìm x biết:
(2x-15)mũ 5=(2x-15)mũ 3
(2x-15)5=(2x-15)3
(2x-15)5=(2x-15)3
(2x -15 )5 = (2x -15 )3
(2x-15)5=(2x-15)3
