A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Yes i do not know how to do this.
I'm going out so my respond is going to be late.
Can someone explain how to do this in steps not just a list of things for me to figure out.
Thanks!
For y = 4x + 2x2 – x3, show how to find the value for y, when x = 2. Show your work
y = 2x + 2x^2+ x^3
y3x^1 x^3
anonymous
 one year ago
Yes i do not know how to do this. I'm going out so my respond is going to be late. Can someone explain how to do this in steps not just a list of things for me to figure out. Thanks! For y = 4x + 2x2 – x3, show how to find the value for y, when x = 2. Show your work y = 2x + 2x^2+ x^3 y3x^1 x^3

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0y=2x+2x^2  x^3 first replace all of the x's with 2 y=2(2) +2(2)^2  2^3 deal with your exponents y=2(2) +2(4)  8 multiply y= 4+8 8 simplify y= 4

anonymous
 one year ago
Best ResponseYou've already chosen the best response.02(2)=4 + 2(2)^2 = 8 and 2^3 = 6

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Not getting the second 8.

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1\[y=4x+2x ^{2}x ^{3} \] is this the problem?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yeah, didn't notice i changed the 4 into a two sh*t

anonymous
 one year ago
Best ResponseYou've already chosen the best response.04(2)+2(2)^2 2^3 This right?

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1so to go about finding for y, we sub substitute the value of x...which is 2... so\[y=4(2)+2(2)^{2}(2)^{3}\]

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1we ditribute and get \[y=8+2(4)8\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay thanks i think i got it.

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1simplify more we get\[y=8+88\]..ok whats your answer?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.04(2)+2(2)^2 2^3 4(2) = 8, +2(2) =4,^2 =8, 2^3 =8, 8+8 8

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1ok i what you to tell me what y=? ...8+88 can be simplify
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.