The expression `ax^2+2bx+c`, where 'a' is non-zero real number, has same sign as that of 'a' for every real value of x,then roots of quadratic equation `ax^2+ (b-c) x-2b-c -a-0` are: (a) real and equal (b) real and unequal (c) non-real having positive real part(d) non-real having negative real part

Options

A. ral and equal
B. real and unequal
C. non-real having positive ral part
D. non-real having negative real part

Answer

B