Question 623581
(4a + 3b)(4a + b)

Multiply using the FOIL Method:

4a * 4a = 16a^2

4a * b = 4ab

3b * 4a = 12ab

3b * b = 3b^2


16a^2 + 4ab + 12ab + 3b^2

Combine like terms:

4ab + 12ab = 16ab


The Answer:

16a^2 + 16ab + 3b^2



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