A community for students.
Here's the question you clicked on:
 0 viewing
AlexisDelgado
 3 years ago
Multiply and simplify: (4 + v8) (4 v8)
AlexisDelgado
 3 years ago
Multiply and simplify: (4 + v8) (4 v8)

This Question is Closed

Muhammad_Nauman_Umair
 3 years ago
Best ResponseYou've already chosen the best response.2is it v^8?

Muhammad_Nauman_Umair
 3 years ago
Best ResponseYou've already chosen the best response.2as, a^2b^2=(a+b)(ab)

vi3tbloodxx
 3 years ago
Best ResponseYou've already chosen the best response.0FOIL (4+v8) (4 v8) =16  4v8 + 4v8  8 = 8

Muhammad_Nauman_Umair
 3 years ago
Best ResponseYou've already chosen the best response.2then, =4^2(v^8)^2 =16v^16

Kreshnik
 3 years ago
Best ResponseYou've already chosen the best response.0@vi3tbloodxx you're wrong... (4+v8) (4 v8) =16  4v8 + 4v8  8 = 8 it should be (4+v8) (4 v8) =16  4v8 + 4v8  64v^2 =4^2(8v)^2 so from here we can see that there's no need to multiply and simplify... just use difference of binom formula : a^2b^2 =(a+b)(ab) \[\LARGE a^2b^2=(ab)(a+b)\]

vi3tbloodxx
 3 years ago
Best ResponseYou've already chosen the best response.0a^2−b^2=(a−b)(a+b)\ in this equation (4+v8) (4 v8) a = 4 and b = v8 4^2  (v8)^2 gives 16  8 = 8

Kreshnik
 3 years ago
Best ResponseYou've already chosen the best response.0@vi3tbloodxx Still don't get what you're trying to say...O_o where's "v" how come (v8)^2=8 ???

vi3tbloodxx
 3 years ago
Best ResponseYou've already chosen the best response.0the v stands for the square root of 8. When squaring a square root the result is the number inside of the square root.

vi3tbloodxx
 3 years ago
Best ResponseYou've already chosen the best response.0v cannot be a variable due to the fact that variables stands behind the number. Also from the poster previous post, she been using "v" as a square root notation.

Kreshnik
 3 years ago
Best ResponseYou've already chosen the best response.0hold on... is \[\LARGE v8=\sqrt8\] or \[\LARGE v8=v8\] ?? "v" is a square root or just a letter?? !

Kreshnik
 3 years ago
Best ResponseYou've already chosen the best response.0auff... not your fault , I misunderstood ! I apologize , you're right , the answer is 8 :(
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.