Open study

is now brainly

With Brainly you can:

  • Get homework help from millions of students and moderators
  • Learn how to solve problems with step-by-step explanations
  • Share your knowledge and earn points by helping other students
  • Learn anywhere, anytime with the Brainly app!

A community for students.

divide and rationalize 3+sqrt(18)/ 1+sqrt(8)

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

Join Brainly to access

this expert answer

SIGN UP FOR FREE
hey, how's it going?
hi can you help me?
sure, first do you know how to simplify sqrt(18) and sqrt(8)?

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

yes i simplified the problem to \[3+3\sqrt{2}/1+2\sqrt{2}\]
good!
when you have a square root in the denominator, to clean it up you have to multiply by something called the conjugate, which basically just means you change the sign of the square root term
i did that too.
so for this case, you would multiply it by (1-2sqrt(2))/(1-2(sqrt(2))
\[1-2\sqrt{2}\] right?
right, so did you multiply the top and bottom by that?
i did but i erased it.
but just foil right? i get the top part but the bottom confuses me.
what confuses you about the bottom part? what did you get for the top?
i got \[3-6\sqrt{2}+6\sqrt{2}-12\] simplified to -9
WHat hold on somyjing looks rwong
thats what i figured i got everything till the foiling part
bob how did you do this
2sqrt(2)*3sqrt(2) is what?
\[6\sqrt{2}\]
well no, that is 12, but you got that part right, your mistake was 3sqrt(2) * 1 i believe
oh your right... i thought i was going to be able to eliminate the roots in the middle...
you want to eliminate the roots on the bottom, that's why are we doing this. you don't have to eliminate the roots on the top.
\[3-6\sqrt{2}+3\sqrt{2}\] -12 right?
looks good for the top
i kept getting 1-8
looks good, so what's your end answer?
hold on i haven't solved it yet, thought you were going to say i was wrong.
where's your confidence? :)
not in my math capabilities thats for sure haha. \[-9-3\sqrt{2}/-7\]
okay so the numbers are right but my text book says all the nubmer are positive.
looks good, don't forget parentheses if you write it like you typed it, and you can multiply by -1/-1 and get rid of all the negatives if you want
parentheses? the ones used to foil? and okay thank you soo much your very helpful.
i was just saying the way you typed your answer, could be -9 - (3sqrt(2)/-7) which is not the same thing

Not the answer you are looking for?

Search for more explanations.

Ask your own question