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What non-zero integer must be placed in the square so that the simplified product of these two binomials is a binomial: $(3x+2)(18x-\Box )$?

 Dec 12, 2021
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Put a 12 in the box.  

 

Then you'll have 18x • 2 = +36x   

                 and  3x • –12 = –36x  

                 and together they total zero.  

.

 Dec 12, 2021

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