Question

Q1. IOf one root xsquare-ax-4= is negative of the other then the value of a is

a)0
b)1
c)2
d)4

Answer 1

Let the roots of the equation x²-ax-4 = 0 be p and –p
Sum of the roots (p + (-p)) = -(-a)
Therefore, a = 0

The answer is option a

Answer 2

The answer is option a