How do you simplify #(3y + 3) (y + 2)#?

1 Answer
Don't Memorise
Jun 22, 2015

#= color(red)(3y^2 + 9y + 6#

Explanation:

#(color(red)(3y + 3)) (y + 2)#
We multiply each of the two terms of the first bracket with each term within the second bracket:

#= color(red)(3y) . (y+2) + color(red)(3) . (y + 2)#
#= 3y^2 + 6y + 3y + 6#
#= color(red)(3y^2 + 9y + 6#

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