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Find the value of c that makes each trinomial a perfect square.  Then write the trinomial as a perfect square.
 
648-05-04-00-00_files/i0290000.jpg
 
a.
648-05-04-00-00_files/i0290001.jpg
c.
648-05-04-00-00_files/i0290002.jpg
b.
648-05-04-00-00_files/i0290003.jpg
d.
648-05-04-00-00_files/i0290004.jpg
    
 
mishforever21  Dec 15, 2014

Best Answer 

 #1
avatar+88899 
+5

Take (1/2) of the coefficient on "x," i.e., (-8/3)....so ....(1/2)(-8/3)  = -8/6

To find  "c," square this =  (64/36) = (16/9)  = c

So, the polynomial is  x2 - (8/3)x + 16/9

And to factor this, we have

[x - 4/3 ] 2

The correct answer is "c"

 

CPhill  Dec 15, 2014
 #1
avatar+88899 
+5
Best Answer

Take (1/2) of the coefficient on "x," i.e., (-8/3)....so ....(1/2)(-8/3)  = -8/6

To find  "c," square this =  (64/36) = (16/9)  = c

So, the polynomial is  x2 - (8/3)x + 16/9

And to factor this, we have

[x - 4/3 ] 2

The correct answer is "c"

 

CPhill  Dec 15, 2014

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