Question

plz answer my q.
plzzz send me fast ​

Answer 1

if roots are equal

then discriminant = 0

( C-a)^2 =4( b- C)( a-b)

c^2 + a^2 - 2ca = 4ba - 4b^2 - 4ca + 4cb

c^2 + a^2 + 2ca - 4ba + 4b^2 - 4cb = 0

( c+ a)^2 = -4b( b - c - a)

( c+ a)^2 = -4 b^2 +4b( c+a)

( c+ a)^2 + 4b^2 - 4b( c+a) = 0

( c+ a - 2b)^2 = 0

c+ a = 2b