Question

Whats the expression (2x+3)(2x-4)

Answer 1

`{4x}^(2) - 2x - 12`

Explanation:

To complete this problem, use FOIL. First, Outer, Inner, Last.

(2x + 3)(2x - 4)

First, multiply 2x by 2x.

`{4x}^(2)`

Now, multiply the outer numbers, 2x and -4.

`- 8x`

Third, multiply the inner numbers, 3 and 2x.

`6x`

Lastly, multiply the last numbers, 3 and -4.

`- 12`

Now, put it all together.

`{4x}^(2) - 8x + 6x - 12`

The final step is to combine like, or similar terms.

The only ones that can be combined are -8x and 6x.

`{4x}^(2) - 2x - 12`