+0  
 
0
22
1
avatar+2653 

Fill in the blank with a constant, so that the resulting expression can be factored as the product of two linear expressions:
2ab - 12a + 3a + 3b - 8b - ab + ___

 Jun 8, 2024
 #1
avatar+129881 
+1

Simplify as

 

ab  - 9a - 5b

 

Take the product  of the two coefficients on a, b  =  (-9) (-5)  = 45

(This is the number that goes in the blank)

Add this

 

ab - 9a - 5b + 45       factor as

 

(a - 5) ( b  - 9)

 

cool cool cool

 Jun 8, 2024

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