Multiply the polynomial expression (x+2)(x−4) .
To multiply the polynomial expression (x+2)(x-4), we need to use the distributive property.
(x+2)(x-4) can be written as:
x(x-4) + 2(x-4)
Now we can simplify each term separately:
x(x) - x(4) + 2(x) - 2(4)
x^2 - 4x + 2x - 8
Simplifying further:
x^2 - 2x - 8
Therefore, (x+2)(x-4) simplifies to x^2 - 2x - 8.