Question

which of the following is a quadratic question
1. x square +2x+1=(4-x)square=(4-x)square+3
2. -2x square=(5-x)(2x-2/5)
3. (k+1)x squire + 3/2x=7 where k=-1
4. x cube -x square =(x-1) cube​

Answer 1

Answer:

2)

-2x square=(5-x)(2x-2/5)