Question

check whether the following are quadratic equations or not

1) (2x-3)(x+1) = 2x(x+7)
2) (x^2+3x+1 = (x-2)^2
3) (X+4)^3 = x(x^2-1)
4) x^3-8x^2-x+1 = (x-3)^3 ​

Answer 1

Answer:

1 not quadratic

2 quadratic

3 quadratic

4 not quadratic

Answer 2

Answer:

1) X = 1/5

2) X = 3/7

3)

4) X = 3 or 5