For the fraction M-1 / x2-2x + m, no matter what the value of X is, the fraction is always meaningful

For the fraction M-1 / x2-2x + m, no matter what the value of X is, the fraction is always meaningful

If the fraction is always meaningful, we only need to make x ^ 2-2x + m not equal to 0;
Considering x2-2x + m as a quadratic equation of one variable, there is no intersection between the equation image and X axis;