To expand the expression (4r + 3)(7s + 4), we use the distributive property:
First, multiply the first terms: (4r)(7s) = 28rs
Then, multiply the outer terms: (4r)(4) = 16r
Next, multiply the inner terms: (3)(7s) = 21s
Lastly, multiply the last terms: (3)(4) = 12
Combine all the terms:
28rs + 16r + 21s + 12
Thus, the expanded form of (4r + 3)(7s + 4) is 28rs + 16r + 21s + 12.
(4r + 3) (7s + 4)
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