Question

The quadratic polynomial f(x) = ax2 + bx + c has real zeroes m and n. If a, b, c are real and of the
same sign then
(A) m > 0, n 0, m > 0
(C) m 0 (D) n< 0, m< 0

Answer 1

$\huge \fbox{\underline \blue{Answer-}}$

Let f(x)=ax^2 +bx+c

Given f(1)<0 and f(x)=0 has no real roots, then we can say that f(x)<0 for all x.

So, f(0)<0.

So, we get n<0.