How do you evaluate (6x + 5)(9x +9)?

1 Answer
Aug 4, 2017

See a 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)(6x) + color(red)(5))(color(blue)(9x) + color(blue)(9)) becomes:

(color(red)(6x) xx color(blue)(9x)) + (color(red)(6x) xx color(blue)(9)) + (color(red)(5) xx color(blue)(9x)) + (color(red)(5) xx color(blue)(9))

54x^2 + 54x + 45x + 45

We can now combine like terms:

54x^2 + (54 + 45)x + 45

54x^2 + 99x + 45