How do you find the product #(c+9)(c-3)#?

1 Answer
Feb 20, 2017

Answer:

See the entire solution process below:

Explanation:

To multiply these two terms you multiply each individual term in the left parenthesis by each individual term in the right parenthesis.

#(color(red)(c) + color(red)(9))(color(blue)(c) - color(blue)(3))# becomes:

#(color(red)(c) xx color(blue)(c)) - (color(red)(c) xx color(blue)(3)) + (color(red)(9) xx color(blue)(c)) - (color(red)(9) xx color(blue)(3))#

#c^2 - 3c + 9c - 27#

We can now combine like terms:

#c^2 + (-3 + 9)c - 27#

#c^2 + 6c - 27#