Question

8. Which of the following equations is not quadratic? *
1. (x+1)=2(x-3)
2. x2-2x=(-2)(3-X)
3.(x-2)(x+1)=(x-1)(x+3)
4.(x-3)(2x+1)=x(x+5)​

Answer 1

Answer:

may be 2nd answer is not quadrant