Question

(3x-7)(3x-5)??

Answer 1

FOIL

Answer 2

whats that??

Answer 3

@e.cociuba ??

Answer 4

FOIL: First - Outer - Inner - Last

Answer 5

so how do you work this problem out?? @e.cociuba??

Answer 6

(3x-7)(3x-5):
The First terms are multiplied together:
x*x = x²

Answer 7

9x

Answer 8

http://www.freemathhelp.com/using-foil.html

Answer 9

3x multiplied by 3x = 9x^2 ???????

Answer 10

and 3x multiplied by -5 = -15x ?????

Answer 11

so you have 9x^2 -15x -21x + 35

Answer 12

now you can combine like terms

Answer 13

so it would be 24x^2?? @ivettef365

Answer 14

no it would be 9x^2 -36x -35

the only term that you can add was -15x - 21x (just because both have only one "x")
you can not combine the other terms because are different

Answer 15

sorry +35

Answer 16

9x^2 -36x +35