Question

How do you evaluate square roots with variables?

Answer 1

You don't, unless they are in the form of a perfect square.

Answer 2

Do you have a specific problem you would like to go over? @justneedhelppp

Answer 3

\[\sqrt{a^6b^5}\]

Answer 4

stuff like that?

Answer 5

@justneedhelppp?

Answer 6

like this \[\sqrt{(45x + 89)}^2\] @MathLegend

Answer 7

Its really confusing and i just need help.. can you both try it out @MathLegend @Jemurray3

Answer 8

I don't see anything that breaks down 89...

Answer 9

Thats whats confusing me @MathLegend

Answer 10

89 looks to be prime...

Answer 11

Ok so do you know how we can solve it? @MathLegend

Answer 12

It's the square root of something squared...

Answer 13

Is this by any chance a multiple choice problem? I, myself, am baffled.

Answer 14

Not 89... nothing squared goes into 89 and I don't see any number that goes into 89.

Answer 15

Gee thanks for the help @Jemurray3
And No :/ Its just write your answer @MathLegend

Answer 16

Look at the question that was typed.

\[ \sqrt{( 45x + 89)^2} = 45x+89\]
Unless you made a typo.

Answer 17

No Typo There @Jemurray3

Answer 18

I understand the square root symbol and the squared canceling each other out. However, what after that?

Answer 19

Im not really sure with this, I'm an 8th grader, retaking a test and having to do this packet full of problems that I'm not used too @MathLegend

Answer 20

Do they have another problem similar to that one by any chance in that packet?

Answer 21

Yes. \[\sqrt{(-23x^4+81)^8}\] @MathLegend

Answer 22

I wish I could help with those... but I am not sure.

Answer 23

What is this topic called?

Answer 24

Its Called real numbers and the number line @MathLegend

Answer 25

With square roots?

Answer 26

Yes @MathLegend

Answer 27

For something called that you would normally just be placing something on the number line.

Answer 28

Yeah, that was weird but that was the topic on my worksheet. Then it says how to find square roots of variables but it was confusing @ mathlegend