How do you express (2x-4)(x+8) (2x−4)(x+8) as a trinomial?

Answer 1

Hi Lila,

possibly you did not mean to duplicate those two binomials. If that's true, you want to multiply the two binomials (2x - 4)(x + 8) together. One way to think about it is that you'll need to distribute 2x and -4 into the other binomial.

So: 2x(x + 8) -4(x + 8)

2x² + 16x - 4x - 32

2x +12x - 32

Now that is a trinomial because it has three terms.

Enjoy