\(\left(x-7\right)^{x+11}-\left(x-7\right)^{x+1}=0\)
\(\left(x-7\right)^{x+1}.\left(x-7\right)^{10}-\left(x-7\right)^{x+1}=0\)
\(\left(x-7\right)^{x+1}\left[\left(x-7\right)^{10}-1\right]=0\)
Th1 \(x-7=0\Rightarrow x=7\)
Th2 \(\left(x-7\right)^{10}-1=0\)
\(\left(x-7\right)^{10}=1\Rightarrow x-7=0\Leftrightarrow x=7\)
Vậy x=7
tìm xϵZ biết:
\(\left(x-7\right)^{x+1}-\left(x-7\right)^{x+11}=0\)
Tìm x biết \(\left(x-7\right)^{x+1}-\left(x-7\right)^{x+11}=0\)
tìm x biết
\(\left(x-7\right)^{x+1}-\left(x-7\right)^{x+11}=0\)
Tìm x biết :\(\left(x-7\right)^{x+1}-\left(x-7\right)^{x+11}=0\)\(0\)
Tìm x
\(\left(x-7\right)^{x+1}-\left(x-7\right)^{x+11}=0\)
tìm x , biết: \(\left(x-7\right)^{x+1}-\left(x-7\right)^{x+11}=0\)
tìm x\(\in\)Z , biết
\(\left(x-7\right)^{x+1}-\left(x-7\right)^{x+11}=0\)
Tìm x biết :
a. \(|x-\frac{1}{3}|+\frac{4}{5}=|\left(-3,2\right)+\frac{2}{5}|\)
b. \(\left(x-7\right)^{x+1}-\left(x-7\right)^{x+11}=0\)
Tìm x biết:
\(\left(x-7\right)^{x+1}-\left(x-7\right)^{x+11}=0\)
\(\left(8x-1\right)^{2n+1}=5^{2n+1}\)
