Question

(2x+3)(2x-3) how do i use the foil method

Answer 1

the same way youd use the lfio method or 22 other methods :)

Answer 2

Get the items in the first set of parenthesis and times the out one at a time and then total.

Answer 3

just multiply the 2 together ...

Answer 4

\[(2x)(2x)+(2x)(-3)+3(2x)+3(-3)\]

Answer 5

4x^2-9

Answer 6

x= -3/2 or 3/2

Answer 7

im old and tend to get lost in the f the o the i and the l so I just do it the simplest way I know how :)

2x+3
2x-3
---------
-6x-9
4x^2+6x
-----------
4x^2 + 0 -9

4x^2 - 9

Answer 8

i hate math ugh ....

Answer 9

i love how all of a sudden x equals something!

Answer 10

you might could recognize that
\[(a+b)(a-b)=a^2-b^2\] foil or no foil. here you have
\[(2x+3)(2x-3)=(2x)^2-3^2=4x^2-9\]

Answer 11

Well at least you're reaching out for help and more importantly explanation. Most folks here just wants answers.

Answer 12

well i don't wanna havehelp all my life i like to be independent

Answer 13

I prefer to just use normal distribution:
\[(2x+3)(2x-3)\]\[=2x(2x-3) + 3(2x-3)\]\[=4x^2 - 6x + 6x - 9\]\[=4x^2 - 9\]

Answer 14

ok thanks for the help