Question

solve the quadratic equation using the quadratic formula x^2+7x+3=0

Answer 1

do you know how to factor?

Answer 2

yeah kinda

Answer 3

Here is the quadratic formula:
\[x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}\]

Answer 4

yeah i know it thanks lol i already plugged them in

Answer 5

In your problem a = 1, b = 7, c = 3
Plug in those values and simplify.

Answer 6

i got

Answer 7

yeah how did you get 37?

Answer 8

You should get:
\[x=\frac{-7}{2}\pm\frac{\sqrt{37}}{2}\]

Answer 9

b^2=49
4(1)3)=12
49-12=37

Answer 10

Ohh, Okay thank you, but can you please show me how you got 37

Answer 11

\[\sqrt{7^2-4(1)(3)}=\sqrt{49-12}=\sqrt{37}\]

Answer 12

okay thank :) i think i get it but is that simplied completley

Answer 13

yes

Answer 14

so those are the soulutions

Answer 15

yes