Question

If zeroes of the quadratic polynomial ax²+ bx + c = 0 , c is not equal to 0 , then comment on sign on a and c

Answer 1

to find the roots of a quadratic equation determine the determinant that is b square - 4 sc as it is equal to zero for equal roots therefore b square equal to 4 AC as b square is greater than zero therefore AC should also be greater than zero therefore AC should both be positive or both be negative