Question

wich of the following are quadratic equation? 1. (X-1) (X-3) =(X+5) (X-1), 2.3X^2+2×-5=X^2-2×+3
3.X-3/X=X^2
4.2(X-2)^2=4X^2=3X^2-5X
5.(√2×+√3)^2+X^2=3X^2-5X​

Answer 1

quadratic equation is 2nd

Answer 2

Answer:

2

Step-by-step explanation:

1. and 5;: x^2 will be omitted

3. x^3