- anonymous

Please Help

- katieb

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

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- anonymous

##### 1 Attachment

- OregonDuck

what do you think?

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## More answers

- anonymous

i got noooo idea

- anonymous

gimme a sec

- anonymous

its a

- anonymous

What you could always do with these are just plug in the values of x in to the equation a check with these one.

- anonymous

no its not

- Sachintha

not a

- anonymous

i just used a calculator

- anonymous

It has to be a single number with this

- OregonDuck

yes it is c actually

- Sachintha

Take 45 to the right hand side, divide by 5 and get the square root of it.

- anonymous

uggggh im torn

- Sachintha

Try to solve it without the use of calculators.

- OregonDuck

dang it so close i need 1 more medal

- Mahmood786123

there you go

- Mahmood786123

one medal

- OregonDuck

YAY thxs

- anonymous

this is the working they showed me 5x^2 - 45 = 0
1. divide by 5
5(x^2 - 9) = 0
2. It's easy to factor the x^ - 9 polynomial!
x^2- 9 = (x+3)(x-3)
you can check this with FOIL if you want, but I promise it's right!
So, the answer is:
5(x+3)(x-3)=0
x = 3, -3

- Vocaloid

but after you take the square root of both sides, doesn't that give you plus/minus root(9)?

- Mahmood786123

yr welcome

- Sachintha

Yeap. So now you got the answer. :D

- anonymous

thanks guys

- OregonDuck

i have a title now

- anonymous

lemme look at the post to see who gets the medal

- Mahmood786123

i dont see the title

- OregonDuck

refresh your page

- anonymous

imma just give to my lil bro

- Mahmood786123

I see it now

- OregonDuck

yup

- Mahmood786123

ummm...... I didnt help I'm 2 grades under u give it to someonelse

- OregonDuck

wait what grade are you in?

- Mahmood786123

6th

- Mahmood786123

I meant i'm 3 grades under him

- OregonDuck

same here except i can get 100% on algebra 2 work

- Sachintha

Then @Mumustar78612 should teach his little bro. ;D

- Sachintha

@OregonDuck which grade are you in?

- Mahmood786123

actually i'm pretty smart too

- OregonDuck

6th

- Sachintha

Great! :)

- Mahmood786123

my mom sometimes thinks I'm better than him

- Sachintha

Lot to learn. :0

- Mahmood786123

I said SOMETIMES not all the time

- OregonDuck

my dad thinks i am smarter than my 10th grade sister

- Mahmood786123

good for you

- OregonDuck

yup

- Sachintha

@Mahmood786123 I meant since you are in 6th grade there is a lot to learn. I am in my final year in school. :)

- Mahmood786123

Ok if you want to talk to someone message them because other people who clicked on this post are getting notifacations that someone replied in this post and that is considered spam

- Sachintha

Sorry :D

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