Question

解方程练习题共(两题)( 1 )x减1分之x加1等于x减1分子1( 2 )1加x分子1减1减x分子1加x^2减1分子x^

Answer 1

(1) [x+1]/[x-1]=1/[x-1]

x/[x-2]=0 x=0

(2)[x^2+2x+1]/[x^2-1]=1 [2x+2]/[x^2-1]=0 2/[x-1]=0 无解