Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Open

Taxia2 Group TitleBest ResponseYou've already chosen the best response.1
\[\sqrt{15x}(\sqrt{18x}+\sqrt{15x})\]
 3 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
There is no equation to solve? Are you to multiply?
 3 months ago

Taxia2 Group TitleBest ResponseYou've already chosen the best response.1
oops, it is supposed to be simplified!
 3 months ago

Taxia2 Group TitleBest ResponseYou've already chosen the best response.1
but that is the equation, I have the answer, but I am unsure how to get to it.
 3 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
So we want to simplify the expression. Again there is no equation. Just so you know assuming we have x>=0 you can write \[\sqrt{18x}=\sqrt{18} \sqrt{x}\] and you can also do the same for the other terms too.
 3 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
Do you know how to multiply \[\sqrt{x} \cdot \sqrt{x}?\]
 3 months ago

Taxia2 Group TitleBest ResponseYou've already chosen the best response.1
wouldn't that just be x?
 3 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
right another question! Do you know the distributive property?
 3 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
so you know if you have a(b+c) you can do ab+ac
 3 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
so you have \[\sqrt{15} \sqrt{x}(\sqrt{18} \sqrt{x}+\sqrt{15} \sqrt{x})\]
 3 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
so you can treat the thing on the outside of the parenthesis just like that a above
 3 months ago

Taxia2 Group TitleBest ResponseYou've already chosen the best response.1
yes, but wouldn't all of the square roots cancel out? I tried this but the answer i received had no square roots in it. But the answer that is given does...
 3 months ago

Taxia2 Group TitleBest ResponseYou've already chosen the best response.1
wait, I got it!!!
 3 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
Is 15*18 a perfect square? I don't think it is. So you would have at least one square root in your answer. What do you think the answer is?
 3 months ago

Taxia2 Group TitleBest ResponseYou've already chosen the best response.1
well, the given answer is \[3x \sqrt{30} +15x\] so first I simplified what i could inside the parenthesis and got \[\sqrt{15x} (3\sqrt{2x} + \sqrt{15x})\] and then I distributed (Like you said!) and got this \[3\sqrt{30x ^{2}} + \sqrt{15^{2}x ^{2}}\] then I canceled out the roots (like you said) and got the answer!
 3 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
beautiful you didn't need my help
 3 months ago

Taxia2 Group TitleBest ResponseYou've already chosen the best response.1
I did! If I hadn't had it I probably would have given up (as cliche as that sounds) Thank you so much for working me through it!
 3 months ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.