Question

Solve (a) x^2+2x-8=0 and
(b) 3x^2 - 11x -4=0 by using the quadratic
formula.

Answer 1

Do you know what the quadratic formula is?

Answer 2

I know factorization!

Answer 3

Okay good, but this problem is asking you to use the quadratic formula. Does \[-b \pm \sqrt{b ^{2}-4ac} \over 2a \] look famillar?

Answer 4

Yes, then?

Answer 5

x^2+2x-8=0, so looking at this equation can you tell me what is a b and c? hint, standard form is ax^2+ bx+c=0

Answer 6

a=1
b=2
c=8

Answer 7

Okay good, now plug those into the formula I gave you earlier

Answer 8

Yes.
and simplify and get two values. is not it?

Answer 9

No that's correct, do you know what those two values are?

Answer 10

did not get them yet

Answer 11

Mind showing me what you got after you plugged them into the quadratic formula?

Answer 12

gig you get them?

Answer 13

Are you asking me to just give you the answers? lol

Answer 14

Thanks a lot. I got the answer.

Answer 15

Was that sarcasm? Can't tell sorry

Answer 16

Excuse me??