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Solving Quadratic equations by factoring.

 

6n^2 -18n-18=6

 Feb 12, 2019
 #1
avatar+98090 
+1

6n^2 -18n-18   =  6        subtract 6 from both sides

 

6n^2 - 18n - 24 =  0          divide each term by 6

 

n^2 - 3n - 4   = 0

 

We need two terms that  add to -3   and multiply to   - 4

 

-4  and 1   seem to do the trick....so...

 

 

(n - 4) ( n + 1) = 0

 

Either

 

n - 4 = 0            or            n + 1 = 

n = 4                                  n = -1

 

 

cool cool cool

 Feb 12, 2019
 #2
avatar+290 
+2

thank you !!!!

Nerd123  Feb 12, 2019

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