How do you multiply ( 8x + 6) ( x-2) ?

1 Answer
Jun 26, 2015

(8x+6)(x-2) = 8x^2-10x-12

Explanation:

This multiplication can be done in several ways: [1] using the distributive property; [2] using FOIL; [3] using a tabular multiplication.
The following uses the distributive approach.

(color(red)(8x)+color(blue)(6))(x-2)
applying the distributive property:
color(white)("XXXX")=(color(red)(8x))(x-2) + (color(blue)(6))(x-2)
multiplying the two terms separately
color(white)("XXXX")(color(red)(8x^2-16x))+(color(blue)(6x-12))
combine terms
color(white)("XXXX")8x^2-10x-12