Question

which one is Quadratic equation
a) x² + 2x + 1 = 4 - x.² +3
b) - 2x²= (5-x)2x- 2/5
c)(k +1) x²+ 3/2 x = 7 if (k=-1)
d) x3 - x² = (x-1)cube​

Answer 1

Answer:

a. h

anser kuki sab me x2 canecl ho jayega