Question

which of the following is a quadratic equation
(i) x^3-x = 0
(ii) (x-1)(x+2) = x+3
(iii) x +2 =0
(iv)x^3-2x^2+1=0​

Answer 1

Step-by-step explanation:

ii one is the answer maybe I am not sure about the answers

Answer 2

Answer:

ii) (x-1) (x+2)

Step-by-step explanation:

(x-1) (x+2) = x^2 + 2x - x - 2 = x^2 + x -2