The square of X - 3x + 2 = 0, X1 = 1, X2 = 2, the square of X - 3x + 2 = (x-1) (X-2) The square of 5x - 4x-1 = 0, X1 = 1, X2 = - 1 / 5, the square of 5x - 4x-1 = 5 (x-1) (x + 1 / 5) Find the generalization of the conclusion and write it out

The square of X - 3x + 2 = 0, X1 = 1, X2 = 2, the square of X - 3x + 2 = (x-1) (X-2) The square of 5x - 4x-1 = 0, X1 = 1, X2 = - 1 / 5, the square of 5x - 4x-1 = 5 (x-1) (x + 1 / 5) Find the generalization of the conclusion and write it out

Ax ^ 2 + BX + C = 0 when a + B + C = 0
Then the root is X1 = C / A, X2 = 1