Answer:
4x^2+24x-64
Step-by-step explanation:
First you multiply (x+8) by (x-2). You can use this using the FOIL method which stands for first, outer, inner, last. Through this method you would multiply x by x first and get x^2, then x by -2 and get -2x, then 8 by x and get 8x, and finally 8 by -2 and get -16. You then add this all together and get x^2-2x+8x-16 or x^2+6x-16.
Now all you have to do is multiply each term by 4 and get 4x^2+24x-64 using the distributive property.
