A community for students.
Here's the question you clicked on:
 0 viewing
andriod09
 2 years ago
Solve
andriod09
 2 years ago
Solve

This Question is Closed

andriod09
 2 years ago
Best ResponseYou've already chosen the best response.0@.UserNotFound. @jazy @cshalvey

KingGeorge
 2 years ago
Best ResponseYou've already chosen the best response.3In the future, please refrain from tagging a bunch of users. Anyways, first move the 3 over.\[\sqrt{2y3}+3=y\]\[\sqrt{2y3}=y3\]Now square both sides. Can you tell me what youget?

andriod09
 2 years ago
Best ResponseYou've already chosen the best response.0sorry, they're all the people that i have fanned for helping me.

KingGeorge
 2 years ago
Best ResponseYou've already chosen the best response.3No worries, just something to remember for the future. Anyway, can you tell me what you get after squaring both sides?

andriod09
 2 years ago
Best ResponseYou've already chosen the best response.0\[\left( \sqrt{2y3} \right)^{2}=\left( y+3 \right)^{2}\] \[\left( 2y3 \right)=\left(y ^{2}+9 \right)\]

KingGeorge
 2 years ago
Best ResponseYou've already chosen the best response.3The left side looks good. The right is not correct. Remember that you need to FOIL. Can you try again?

KingGeorge
 2 years ago
Best ResponseYou've already chosen the best response.3It's an acronym for First Outer Inner Last It means you first multiply the first two numbers together, then the outer numbers together, then the inner, and then the last numbers. Once you've done that, you add them all. For example: \[(y+3)(y+2)\] First: \((\color{red}y+3)(\color{red}y+2)\implies y\cdot y=y^2\) Outer: \((\color{red}y+3)(y+\color{red}2)\implies y\cdot 2=2y\) Inner: \((y+\color{red}3)(\color{red}y+2)\implies 3\cdot y=3y\) Last: \((y+\color{red}3)(y+\color{red}2)\implies 3\cdot2=6\) So \((y+3)(y+2)=y^2+2y+3y+6=y^2+5y+6\)

KingGeorge
 2 years ago
Best ResponseYou've already chosen the best response.3Now can you try the same thing with \((y+3)^2=(y+3)(y+3)\)?

KingGeorge
 2 years ago
Best ResponseYou've already chosen the best response.3Oh, and it should be \((y3)^2=(y3)(y3)\). Oops :(

andriod09
 2 years ago
Best ResponseYou've already chosen the best response.0\[\left( y+3 \right)\left( y+3 \right)\] \[y^{2}+3y+3y+9?\]

KingGeorge
 2 years ago
Best ResponseYou've already chosen the best response.3Right, and if you had \((y3)(y3)\), it would become something similar. You get \[y^23y3y+9=y^26y+9\] This means you have \[2y3=y^26y+9\]Get 0 on one side, and you get \[y^28y+12=0\]Now you just need to factor this. Can you manage that yourself?

andriod09
 2 years ago
Best ResponseYou've already chosen the best response.0yes i can. Thank you soo much king. for every thing. ima fan you

KingGeorge
 2 years ago
Best ResponseYou've already chosen the best response.3You're welcome. Feel free to post what you get as solutions and I can check them if you want.
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.