Question

Help meee /.<

Answer 1

Solve this quadratic equation using the quadratic formula.

\[3x^2 + 5x + 1 = 0\]

Answer 2

oh i literally just did this

Answer 3

Good for you >.>

Answer 4

I will leave it to the professionals, since I am a mere amateur at this

Answer 5

You have an equation in the form
\[\large ax^2 + bx + c=0\]

The quadratic formula states
\[\large x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\]

Answer 6

Yeah
a=3
b=5
c=1
aaaa what' snext, it's stuck in my brain

Answer 7

Exactly! so now you just plug in each of those numbers for their corresponding variables
a = 3
b = 5
c = 1
\[\large \frac{-(5) \pm \sqrt{(5)^2 - 4(3)(1)}}{2(3)} \]

Answer 8

Oh thanks, let me do this :3

Answer 9

OKay

Answer 10

Okay :D

Answer 11

DAMN IT DIDN'T POST! >.<

Answer 12

Lol uh oh...start over! >:D lol

Answer 13

sUREEE

Answer 14

Okay \[x=\frac{ 5-\sqrt{13} }{ 6 }\]

Answer 15

Yay it works xP

Answer 16

hmm, it does? Because that should be a -5 on top there :)

Answer 17

wait what o.o

Answer 18

o.m.g. well okay let me draw it

Answer 19

Well remember the equation was \(\large x = \frac{\color \red{-}5 \pm \sqrt{(5)^2-4(3)(1)}}{2(3)}\)

Answer 20

Yeah it was :3

Answer 21

So when you simplify that down you get

\[\large x = \frac{-5 \pm \sqrt{13}}{6}\]

WHICH OF COURSE!!!! you then split up into 2 equations since you have a \(\large \pm\) sign

So your 2 answers are then?

Answer 22

YAASS THAT'S WHAT I GOT

Answer 23

Oh lol okay so basically i get\[\frac{ 5-\sqrt{13} }{ 6 }, \frac{ 5+\sqrt{13} }{ 6 }\]

Answer 24

Argh...where is that negative sign in front of the 5 missy! >.<

Answer 25

UGHHH okay iyt's stays there imaginary :3

Answer 26

Lol okay I'll deal with that XD as long as it's there in some sense haha

Answer 27

Fine fine fine take it\[\frac{ -5\sqrt{13} }{ 6 },\frac{ 5+\sqrt{13} }{ 6}\]

Answer 28

Lol I'm just going to type it for you XD :P

\[\large \frac{-5 + \sqrt{13}}{6} , \frac{-5 - \sqrt{13}}{6}\]

Answer 29

Oh damn I made a mistake in the second one again x'P
Sorry LOL thansk

Answer 30

Lol I just wanted to close the case XD \( \LaTeX \) can be terrible sometimes haha

Answer 31

Oh yea yeaa, liek i was trying to post it, and turnsw out, it justposted "okay" >.>