Question 9
(7y - 3z)^2
(7y - 3z)(7y - 3z)
We now use the FOIL method.
49y^2 -42yz + 9z^2
Question 10
(3b + 2)(3b - 2)
Use FOIL.
9b^2 - 4
Question 11
(6x + 5)(3x + 7)
Use FOIL.
18x^2 + 42x + 15x + 35
18x^2 + 57x + 35
I just did your homework. What's going to happen when I am not sitting next to you in class? Think about it.
