Question

(3v+5)(3v-5)
multiply and simplify

Answer 1

so it would be 9v^2+15v-15v+5
9v^2+30v+5

Answer 2

Follow all steps of FOIL:
F: 3v(3v) = 9v^2
O: 3v(-5) = -15v
I: 5(3v) = 15v
L: 5(-5) = -25
Now put all FOIL parts together:
9v^2 - 15v + 15v - 25
Noticew the only like terms are the two middle terms, - 15v and + 15v which add up to 0, so final answer is:
9v^2 - 25

Answer 3

I did not multiply the 5*5 but I think I got the rest right

Answer 4

new one

Answer 5

You need to combine -15v and + 15 v which equals zero, so you end up with no term with v. Answer is 9v^2 - 25