Answer:
Step-by-step explanation:
(4x - 8)(4x + 8)
using the FOIL method.....first, outside, inside, last
First : multiply first terms in each set.....4x * 4x = 16x^2
Outside : multiply outside terms.....4x * 8 = 32x
Inside : multiply inside terms...-8 * 4x = -32x
Last : multiply last terms....-8 * 8 = -64
now we have :
16x^2 + 32x - 32x -64...notice how ur x terms cancel out
16x^2 - 64 <==
