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avatar+2498 

                                

 Jan 19, 2016

Best Answer 

 #1
avatar+33616 
+15

Expand the bracketed terms on the left hand side to get 

 

7x^2 + (7a+b)x + ab

 

For this to equal the right hand side we must have. 

ab = 6   And  7a+b = c

 

As a and b are positive integers we have the following possibilities:

a = 1.  b = 6

a = 6.  b = 1

a = 2.  b = 3

a = 3.  b = 2

 

Choose one of these combinations to work out one possible value for c using c = 7a+b

 Jan 19, 2016
 #1
avatar+33616 
+15
Best Answer

Expand the bracketed terms on the left hand side to get 

 

7x^2 + (7a+b)x + ab

 

For this to equal the right hand side we must have. 

ab = 6   And  7a+b = c

 

As a and b are positive integers we have the following possibilities:

a = 1.  b = 6

a = 6.  b = 1

a = 2.  b = 3

a = 3.  b = 2

 

Choose one of these combinations to work out one possible value for c using c = 7a+b

Alan Jan 19, 2016
 #2
avatar+2498 
0

thanks Alan again ! :)

 Jan 19, 2016

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