The needle of quadratic inequality of one variable There is a problem of quadratic inequality of one variable. I will use the method of drawing a thread. The problem is like this (x+2)(x+1)² ≥0 ——————— x-3 This problem is reduced to (x + 2) (x + 1) & sup2; (x-3) ≥ 0 I don't know what to do with a square

The needle of quadratic inequality of one variable There is a problem of quadratic inequality of one variable. I will use the method of drawing a thread. The problem is like this (x+2)(x+1)² ≥0 ——————— x-3 This problem is reduced to (x + 2) (x + 1) & sup2; (x-3) ≥ 0 I don't know what to do with a square

Even number is like odd number, but it's not straight line. Rebound will continue to pass the next one
(x+2)(x+1)²(x-3)≥0
x-3≠0
X ≤ - 2 or x > 3