Question

Check whether the following are quadratic equations:
(i) (x + 1)2 = 2(x-3)
(ii) x2 - 2x=(-2)(3-X)
(iii) (x-2)(x + 1) = (x - 1)(x + 3)
(v) (x-3)(2x +1)= x(x+5)
(v) (2x - 1)(x-3) = (x + 5)(x-1)
(vi) x2 + 3x + 1 = (x-2)
(vii) (x + 2) = 2x (x² - 1)
(viii) x - 4x2-x+1=(x-2)​

Answer 1

Answer:

The given equation is not quadratic

Answer 2

Step-by-step explanation:

1 is quadratic equation

2 is quadratic equation

3 , 6 , 7 is not quadratic equation

4, 5 , 8 is quadratic equation