+0  
 
+1
105
2
avatar+2077 

Please help asap!

RainbowPanda  Sep 5, 2018
 #1
avatar+91213 
+2

3)  36x^3  + 96x^2  + 42x + 112

Take out the GCF  between  36x^3  and 96x^2  =  12x^2

Take out the GCF between 42x  and 112   = 14

So we have

12x^2 ( 3x + 8)  + 14 (3x + 8)  .....  (3x + 8)  is common...so....

(3x + 8) (12x^2 + 14)     ....note that we can factor a 2 out of the second factor...and we have...

(3x + 8)* 2* (6x^2 + 7)  =

2(3x + 8) (6x^2 + 7)

 

4)  42n^3 - 48n^2  - 336n + 384

Take out the GCF between 42n^3 and 48n^2  = 6n^2

Take out the GCF between 336n  and 384  = 48

So we have

6n^2 ( 7n - 8) - 48(7n -8)

(7n -8) (6n^2 - 48)     ...and we can factor a 6 out of the second factor

(7n - 8) * 6 * ( n^2 - 8)

6(7n - 8) (n^2 - 8)

 

cool cool cool

CPhill  Sep 5, 2018
 #2
avatar+2077 
+1

Thank youuu

RainbowPanda  Sep 5, 2018

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