Question

Answer with explanation pls!

Answer 1

Answer:

The correct answer is a) -8<b<8

Explanation:

We have, for non-real roots,

D < 0

i.e. b^2 - 4ac < 0

Þ b ^2 - 64 < 0

b ^2 < 64

b < +- 8

b < 8 and b > - 8

- 8 < b < 8.

Hope it helps..!!