We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
+2
177
4
avatar+91 

Complete the square: 4x^2 + 5x + 2

 Jun 24, 2019
 #1
avatar+1015 
+2

Derivative:

diff( 4*x^2+5*x+2, x )

 

Integral:

int( 4*x^2+5*x+2, x )

 

 

Limit:

limit( 4*x^2+5*x+2, x=0 )

 

I dont know if this helps but hope it does the calculator puleed it up that is one hear!

 

cool cool cool

 Jun 24, 2019
 #2
avatar+104962 
+3

4x^2  + 5x + 2        factor out the 4

 

4(x^2 + (5/4)x + 1/2)

 

Take (1/2)  of 5/4  = (1/2)(5/4)  =  5/8.....square it  =  25/64.....add and subtract this within the parentheses

 

4 (x^2 + (5/4)x + 25/64 + 1/2 - 25/64)  simplify

 

4( x^2 + (5/4)x + 25/64  + 32/64  - 25/64)

 

4( x^2 + (5/4)x + 25/64  +  7/64)        factor the first three terms in the parenthses

 

4 [ (x + (5/8) )^2  + 7/64  ]       distribute the 4  over the terms inside the parentheses

 

4(x + (5/8) )^2  +  28/64

 

4 (x + (5/8) )^2 +  7/16

 

 

cool cool cool

 Jun 24, 2019
 #3
avatar+91 
+3

Thanks :)

Pushy  Jun 24, 2019
 #4
avatar+1015 
+3

Sorry about that pushyyyyyyy!

 

cool cool cool

Nickolas  Jun 24, 2019

6 Online Users