Question

HELP FOR A MEDAL
Justify if completing the square is a good method for solving when the Discriminant is negative. Use any of your three functions as an example and respond in complete sentences.

Answer 1

f(x)=x2+6x+6
g(x)= x2-2
h(x)= f(x) = x2 + 1

Answer 2

the quadratic formula for solving a quadratic equation comes from completing the square in a general quadratic equation. so both methods are pretty much the same.

Answer 3

Im confused :/

Answer 4

I'd say using the quadratic formula is better than completing the square.

Answer 5

but then why isnt the square a good method ?

Answer 6

for solving when the Discriminant is negative.

Answer 7

I don't know why completing the square is better when the discriminant is negative.

Answer 8

Meh :// okay thanks

Answer 9

Anyway, on the first half of this page, http://www.1728.org/quadr2.htm it talks about completing the square.
Would you rather use this instead of the quadratic formula?
I wouldn't.

Answer 10

Nope nope, thanks so much c:

Answer 11

Glad I could help in some way :-)