Question

If the zeroes of the quadratic polynomial ax^2 + bx + c, where a is not equal to zero and c is also not equal to zero are equal, then
a) c and a always have the same sign
b) c and a always have opposite sign
c) c and b always have same sign
d) c and b always have opposite signs.

Answer 1

who wrote this, abbott and costello?
http://www.youtube.com/watch?v=sShMA85pv8M

Answer 2

Hey, u are bringing some other question here.

Answer 3

no i was just wondering who worded this question. you got lost after the third "is not zero"

Answer 4

if you have a quadratic, first of all "a" cannot be zero, because if "a" is zero it is not a quadratic. so lets eliminate that verbiage. then what this is really saying is,

"If a quadratic equation has one zero, compare the signs of the constant and the leading coefficient"

if there is one zero you have a perfect square,
\[a(x+r)^2\] so they will have the same sign

Answer 5

Means you saying that, "c and a always have same signs"?

Answer 6

satellite 73, u der? Please reply.

Answer 7

yes they are of the same sign

Answer 8

Thanks a lot.

Answer 9

yw