Question

решить уравнение x^2(x+1)-(x+1)=0

Answer 1

x^2( x + 1) - ( x + 1) = 0
( x + 1)( x^2 - 1) =0
x+ 1 = 0
x =- 1
x^2 - 1 = 0
x ^2 = 1
x = 1
x = - 1