Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this and **thousands** of other questions.

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

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this and **thousands** of other questions

Well the idea is to isolate y right? What would be your first step?

You have a cube root. How would you get rid of that?

For instance, if you have a square root you have to square to get rid of the square root.

@francescazares2012 : You there?

yes

So I would cube both sides?

Yep!

Is my answer 2?

Good job!

It didn't work. :/

the answer is 8! :D

Ohh wait. I am dumb.

3^3 is 27 >.< .

thanks for your help! I was having so much trouble

Yeah it's 8 :P .

could you help me with another?

Sure.

√(x+10)=x+10

Okay, square both sides again :) .

okay so now i have x+10=(x+10)^2

Can you expand the (x+10)^2 ?

yes

|dw:1355462739047:dw|

okay I am a bit confused

With?

what I am supposed to do

Okay so we have:
|dw:1355462917095:dw|

|dw:1355463044826:dw|

okay I sort of see where this is going

You realize we have to foil this correct?

|dw:1355463252789:dw|

okay

What did you get?

-10 and -9?

Very good! :) .

wow!

Algebra isn't that bad once you get the hang of it :) .

I have a algebra final tomorrow. I am pretty nervous.

Haha, you will be fine ^_^ .

I am working on this problem right now and I got 3 but it says it's wrong.
√(6a-2)=16

not 16 I meant -4

so √(6a-2)=-4

So square both sides :) .

Keep the negative inside the brackets when you square, so it would be like (-4)^2 .

but wouldn't that be 16?

Yep :) .

Because when you square you are basically going -4 * -4 which his 16 ( negative * negative is +) .

Okay. Well I got the final answer to be 3. But it says that that is wrong. Why is that?

So when you square both sides, what did you get?

It's strange, that's absolutely correct.

That's what I thought. It's online hw. And it tells you when it's right or wrong.

nevermind it was does not exist

probably because it was a -4

No, that's not why.

It depends on the sign of the square root.

If it's a POSITIVE square root then yes, no solutions exist.

But if it's -√(6a-2) then it's 3.

That question was badly worded.

You can say that again!

Anything else?

Only if you are up for it!

√(x+6)=√(x)-6

Square both sides :P .

I found the answer

It's a procedure essentially :P .

What did you get?

does not exist

Good job!

√(y+1)=√(y)+1

what about this one?

Square both sides :) .

okay

y+1=y+1?

No....

We have:
|dw:1355464812127:dw|

You square the WHOLE thing :) .

oh okay

so what do i do now?

After squaring both sides?

yes

Get all the y's on one side.

I think I am having trouble squaring them.

|dw:1355465159249:dw|

oh so I foil

You should get the same answer no matter what you use.

oh okay

What did you do?

I am moving the y's

I think I am doing this wrong