In the equation $$x^{2} +bx+ 12 = 0$$, xis a variable and b is a constant. What is the value of b ?
(1) $$x - 3$$ is a factor of $$x^{2} + bx+ 12$$.
(2) 4 is a root of the equation $$x^{2} +bx+ 12 = 0$$.
应版权方要求,不支持在线看题功能,感谢您的理解。