A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Simplify 3 square root of 5 end root minus 2 square root of 7 end root plus square root of 45 end root minus square root of 28.
anonymous
 one year ago
Simplify 3 square root of 5 end root minus 2 square root of 7 end root plus square root of 45 end root minus square root of 28.

This Question is Open

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0anyone? please i dont understand

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1The expression is this right? \[\large 3\sqrt{5}2\sqrt{7}+\sqrt{45}\sqrt{28}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do you know how to solve it?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1first we need to simplify \(\Large \sqrt{45}\)

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1\[\large \sqrt{45}=\sqrt{9*5}\] \[\large \sqrt{45}=\sqrt{9}*\sqrt{5}\] \[\large \sqrt{45}=3\sqrt{5}\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1Notice how I factored it into 9*5 one of the factors is the largest perfect square factor possible

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1how would you simplify \(\Large \sqrt{28}\) ?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1So \[\large 3\sqrt{5}2\sqrt{7}+\sqrt{45}\sqrt{28}\] turns into \[\large 3\sqrt{5}2\sqrt{7}+3\sqrt{5}2\sqrt{7}\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1from here combine like terms

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i dont really know how to do this part its confusing

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1if I gave you something like 3x+7y+2x+10y, would you be able to combine like terms?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0it would be 5x + 17y right?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1yes that's correct

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1you'll use the same idea

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1let x = sqrt(5) and y = sqrt(7) \[\large 3\color{red}{\sqrt{5}}2\color{blue}{\sqrt{7}}+3\color{red}{\sqrt{5}}2\color{blue}{\sqrt{7}}\] \[\large 3\color{red}{x}2\color{blue}{y}+3\color{red}{x}2\color{blue}{y}\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1simplify `3x2y+3x2y` to get ???

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.16x is correct y is not

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what would the answer be?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.12y2y is 4y, agreed?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1\[\large 3\color{red}{x}2\color{blue}{y}+3\color{red}{x}2\color{blue}{y}\] \[\large 6\color{red}{x}4\color{blue}{y}\] \[\large 6\color{red}{\sqrt{5}}4\color{blue}{\sqrt{7}}\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1So, \[\large 3\sqrt{5}2\sqrt{7}+\sqrt{45}\sqrt{28} = 6\sqrt{5}4\sqrt{7}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can you help me with this one please? if you want to. Which statement is true about the difference 2 square root of 7 − square root of 28?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1\[2\sqrt{7}  \color{red}{\sqrt{28}} = 2\sqrt{7}  \color{red}{2\sqrt{7}} = 0\sqrt{7} = 0\]
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.