How do you multiply #(7n+5)(4n+6)#?

1 Answer
Jim G.
Apr 28, 2017

#28n^2+62n+30#

Explanation:

Each term in the second bracket is multiplied by each term in the first bracket as shown below.

#(color(red)(7n+5))(4n+6)#

#=color(red)(7n)(4n+6)color(red)(+5)(4n+6)#

#=(color(red)(7n)xx4n)+(color(red)(7n)xx6)+(color(red)(5)xx4n)+(color(red)(5)xx6)#

#=28n^2+42n+20n+30#

#=28n^2+62n+30#

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