The method of collocation to solve quadratic equation of one variable is also very helpful for us to prove the inequality. For example, the univariate quadratic inequality is to change the equal sign of the univariate quadratic equation to the unequal sign on the basis of solving the univariate quadratic equation with the method of collocation, which forms the univariate quadratic inequality. It is proved by applying the deformation in combination with the characteristics of the inequality.