## anonymous one year ago Please Help! Fan and Medal!!!! Factor: x2 + 5x + 6 A. (x + 3)(x + 2) B. (x - 3)(x + 2) C. (x + 3)(x - 2) D. (x + 5)(x + 1)

1. anonymous

i think its C, but not sure.

2. calculusxy

You can use FOIL to check out which answer choice might work.

3. anonymous

i don't know how to do this

4. calculusxy

So FOIL stands for: First Outside Inner Last

5. anonymous

6. calculusxy

Let's take the first choice as an example: $(x+ 3) (x+2)$ "First": $x \times x = x^2$ "outside": $x \times 2 = 2x$ "inner": $3 \times x = 3x$ "last": $3 \times 2 = 6$ now put them all together: $x^2 + 2x + 3x + 6$

7. calculusxy

Simplify it and then see if it matches :)

8. calculusxy

@kierstenfouts Do you understand how I used FOIL? It's a really useful method!

9. anonymous

i do

10. calculusxy

Great !