Question

If the roots of ax² - bx - c = 0 change by the same quantity,
then the expression in a, b, c that does not change is
(a) (b² - 4 ac)/a² (b) (b - 4 c)
(c) (b² + 4 ac)/a² (d) (b² - 4 ac)/a

Answer 1

Answer:

I think the answer is option c