Question

Please answer. i have given more points
Which of the following are quadratic equations?
1. (X-1) (X-3) =(X+5) (X-1)
2. 3X 2 +2X-5 = X 2 -2X+3
3. X − 3
= X 2
4. 2 (X − 2) 2 =4X 2 −2 +1
5. ( √2 X+ √3 ) 2 +X 2 =3X 2 – 5X
6. X 2 +5X -6 =0
7. X 2 – 5 =0
8. X 2 -5X+9 = X 2 -7X+3
9. (2X+1)(3X+2 )= 6(X-1)(X-2)
10. X+ 1
=1
11. X 2 -2X = -2(3-X)
12. (X+2) 3 =2X(X 2 – 1)
13. X 2 -6 √2 X+2 = 0
14. 2X 2 - 7X = 0
15. 3X 2 -4X+2 = 2X 2 -2X+4

Answer 1

Answer:

1. it is the quadratic equation