A community for students.
Here's the question you clicked on:
 0 viewing
LaurenAshley1201
 2 years ago
help :) multiply expression
LaurenAshley1201
 2 years ago
help :) multiply expression

This Question is Closed

LaurenAshley1201
 2 years ago
Best ResponseYou've already chosen the best response.0\[2\sqrt{6}\times \sqrt{10}\]

Calcmathlete
 2 years ago
Best ResponseYou've already chosen the best response.1Multiply them seperately... \[2\sqrt6 \times \sqrt{10} \implies 2\sqrt{6 \times 10} \implies 2 \sqrt{2 \times 3 \times 2 \times 5} \implies~?\]

Calcmathlete
 2 years ago
Best ResponseYou've already chosen the best response.1Can you finish from there? Can you simplify the radical?

violy
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1344751807375:dw here is an example. :)

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1@merp it is better if you do it here by your own..

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1@LaurenAshley1201 \[\implies 2 \sqrt{\color{blue}{\underline{2 \times 2}} \times 3 \times 5} = ??\]

LaurenAshley1201
 2 years ago
Best ResponseYou've already chosen the best response.02 sqrt 60? i dont think im doing it right

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1You can solve further for \(\sqrt{60}\)..

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1\[\sqrt{60} = \sqrt{\color{blue}{\underline{2 \times 2}} \times 3 \times 5}\] Can you go further..??

violy
 2 years ago
Best ResponseYou've already chosen the best response.0think of a perfect square number that can go into 60.

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1There is one 2 outside too..

Calcmathlete
 2 years ago
Best ResponseYou've already chosen the best response.1We have broken 60 down into prime factors for you. Remember this? \[\sqrt{x \times x} = x\]Use the same rule...

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1\[2 \times 2 \sqrt{15} = ??\]

violy
 2 years ago
Best ResponseYou've already chosen the best response.0do you mean sqrt (4 * 15) ?

LaurenAshley1201
 2 years ago
Best ResponseYou've already chosen the best response.0i dont know how to go any furhter

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1\(\sqrt{60}\) is how much ??

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1you have solved it above..

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1\[\sqrt{60} = \sqrt{\color{blue}{\underline{2 \times 2}} \times 3 \times 5} = ??\]

violy
 2 years ago
Best ResponseYou've already chosen the best response.0its like sqrt( 5 x 5) = sqrt (25) = 5.

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1Where are you having problem @LaurenAshley1201

violy
 2 years ago
Best ResponseYou've already chosen the best response.0let me give you an example: \[\sqrt{45}=\sqrt{3*3*5}=\sqrt{9} * \sqrt{5} = 3\sqrt{5}\]

LaurenAshley1201
 2 years ago
Best ResponseYou've already chosen the best response.0sqrt of 60 is 2 sqrt 15

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1In square root you can pull out one from a pair like this: \[\sqrt{4 \times 4 \times 5}\] Here you can see there are two 4's. SO you can take one 4 outside and there will remain no 4 in the square root brackets: So it becomes; \[\sqrt{\color{green}{\underline{ 4 \times 4} \times 5}} \implies 4 \sqrt{5}\]

Calcmathlete
 2 years ago
Best ResponseYou've already chosen the best response.1Ok. Do you understand this at the very least? \[\sqrt{3 \times 3} = \sqrt{3^2} = \sqrt{9} = 3\color{red}{\huge??????}\]

Calcmathlete
 2 years ago
Best ResponseYou've already chosen the best response.1THat's basically what you're doing here, it's just that you can make sense of it without showing all of the steps because you know the end result which is why we know that\[\sqrt{60} = \sqrt{2 \times 2 \times 3 \times 5} = 2\sqrt{15}\]

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1\[2 \sqrt{60} = 2 \times (2 \sqrt{15}) = ??\]

LaurenAshley1201
 2 years ago
Best ResponseYou've already chosen the best response.0@Calcmathlete would that be my final answer?

Calcmathlete
 2 years ago
Best ResponseYou've already chosen the best response.1Not quite...you forgot the 2 that was already out there... \[2 \times 2\sqrt{15} = ?\]

violy
 2 years ago
Best ResponseYou've already chosen the best response.0not yet, example: \[3*(4\sqrt{5}) = 3*4\sqrt{5} = 12\sqrt{5}\]

LaurenAshley1201
 2 years ago
Best ResponseYou've already chosen the best response.0i figuired it out,with everyones help ! thanks everyone
Ask your own question
Sign UpFind more explanations on OpenStudy
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.