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Guide to Multiplying a Binomial and a Trinomial (7x 2 + x 4 + 11x) (2x 2 + 3x 3 )
Step 1:  (draw your grid) ,[object Object]
Step 2:  (fill in the numbers by multiplying) ,[object Object],7x 4 x 2 11x 2x 2 3x 4 33x 5 3x 6 21x 8 22x 3 2x 4 14x 6
Step 3:  (put the numbers in order) ,[object Object],7x 4 x 2 11x 2x 2 3x 4 21x 8 + 14x 6  + 3x 6  + 33x 5  + 2x 4   + 22x 3   33x 5 3x 6 21x 8 22x 3 2x 4 14x 6
Step 4:  (combining like terms) ,[object Object],[object Object],[object Object]

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Multiplying a Binomial and a Trinomial