Answer:
Explanation:
Without more input from you, it's hard to find an exact value for b. However, b may take on a large range of values. b = 10 and b = -3 (chosen arbitrarily) are acceptable choices.
Take a look at the quadratic formula. The discriminant is b^2 - 4ac. There is nothing about this equation that restricts or forbids the use of any value of b.