+0  
 
+2
315
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+111401 
+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

16 Online Users

avatar
avatar
avatar