How do you multiply $(x-4)(x+8)$ ?

Question

5798 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-08-02T20:32:20

$(x-4)(x+8)=x^2+4x-32$

Use the FOIL method which shows the order of multiplication of the terms. Then add like terms.

![ www.mesacc.edu )

$(x-4)(x+8)=(x*x)+(x*8)+(-4*x)+(-4*8)$ =

$(x-4)(x+8)=x^2+8x-4x-32$ =

$(x-4)(x+8)=x^2+4x-32$

How do you multiply (x-4)(x+8)(x-4)(x+8)?