1.Find the integer(整数) which satisfies the equationx^3-x^2-11x+3=_数学解答

1.Find the integer(整数) which satisfies the equation
x^3-x^2-11x+3=0
2.Find in the form a+b|3(3开方抱歉我实在找不到根号),where a and b are integers,the other values which satisfy the equation (就是求整数a和b)
我第一问会做就是第二问不会

人气：277 ℃　时间：2020-03-27 07:54:26

解答

1)
x^3-x^2-11x+3=0
(x^3+3x^2)-(4x^2+12x)+(x+3)=0
(x+3)(x^2-4x+1)=0
x=-3
2)
where's the equation?