Question

How can I use FOIL to solve this: (-16t + 1) (x + 8) ?

Answer 1

What does FOIL stand for?

Answer 2

first, outside, inside, last.

Answer 3

First, Outer , inner,Last

Answer 4

do you know BODMAS?

Answer 5

No, I don't know that.

Answer 6

FOIL -- first, outside, inside, last

(-16t + 1) ( x + 8)

First -- multiply first terms in each set....-16t * x = -16tx
Outside -- multiply outside terms in each set...-16t * 8 = -128t
Inside -- multiply inside terms in each set... 1 * x = x
Last -- multiply last terms in each set...1 * 8 = 8
now combine like terms
-16tx - 128t + x + 8 <== there you go, your answer

Answer 7

So if you follow what FOIL stands for, just look at these two:

(-16t + 1) (x + 8)

Which are the First terms? Which are the Outer terms? Inner? Last? Multiply each of these 4 pairs together, and then add them.

Answer 8

first recognize the first, outer inner and last terms

Answer 9

Ok, I understand now.