- anonymous

Find the x-intercepts (if any) for the graph of the quadratic function.
6x2 + 12x + 5 = 0
Give your answers in exact form. Show your work.

- jamiebookeater

See more answers at brainly.com

At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this

and **thousands** of other questions

- anonymous

@Jhannybean @satellite73 @Loser66 @freckles @EclipsedStar @King.Void. @sleepyjess can someone help me please?

- sleepyjess

Do you have an idea on how to start?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

- anonymous

no not at all

- sleepyjess

Do you know what the quadratic formula is?

- anonymous

what you mean?

- sleepyjess

\(x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\)

- sleepyjess

That is the quadratic formula

- sleepyjess

It may look intimidating, but it's not too bad once you know how to work it :)

- anonymous

Okay how do I work it lol..

- sleepyjess

A quadratic equation is ALWAYS "Ax^2 + Bx + C = y"
To use the quadratic formula, you will want to substitute 0 for y, which has already been done.
Can you figure out what A, B, and C are in the quadratic equation you have?

- anonymous

A= 6x^2
B= 12x
C= 5

- sleepyjess

Close, but we just want 6, 12 and 5

- anonymous

Ohh lol

- sleepyjess

So now we just substitute in 6 for a, 12 for b, and 5 for c
then work out the equation

- anonymous

I got down to \[x= \frac{ -12\pm \sqrt{24} }{ 12 }\] now what do I do?

- anonymous

- carolinar7

Now simplify what you have there

- anonymous

How?

- carolinar7

\[x=\frac{ -12-+4\sqrt{6} }{ 12 }\]

- carolinar7

Can you simplify any further?

- anonymous

Why 4 sqrt7 instead of sqrt24=4.89....?

- anonymous

I meant sqrt6 sorry

- carolinar7

Sorry let me correct myself it is 2sqrt6

- carolinar7

Is this Alg. 1

- anonymous

How!? And no its pre-calculus

- carolinar7

what grade ar you in

- anonymous

@sleepyjess please help me, I don't understand!!

- carolinar7

me too im in pre-calc in 9th grade

- sleepyjess

oh goodness, I forgot about the square root simplifying >_<

- anonymous

How do I do that?

- sleepyjess

@carolinar7 simplified it for you

- carolinar7

what do you mean you simplified it for me

- sleepyjess

you simplified the square root already

- anonymous

2 sqrt6?

- carolinar7

It is not completely simplified though, you can simplify further too

- carolinar7

\[x=\frac{ -6+-\sqrt{6} }{ 6 }\]

- anonymous

so where do I go from \[x= \frac{ -12 \pm 2\sqrt{6} }{ 12 }\]

- anonymous

Ohhh how did you get that?

- carolinar7

You simplify it and divide by 2 because that is what they share in common

- anonymous

Ohhh okay soo now I do -6/6?

- carolinar7

|dw:1443753373282:dw|

- carolinar7

no you cant simplify any further

- anonymous

so thats the exact form?

- carolinar7

Wait let me do it on a paper

- carolinar7

Yes that is the most you can simplify it

- anonymous

Okay thank you!

- carolinar7

yup

Looking for something else?

Not the answer you are looking for? Search for more explanations.