9+3x^2
It's technically already in simplest form, except you usually put x first
=3x^2+9
I don't really know if the question is complete but...
y = x -10 can be a solution
so y would be -7 when x is 3
Distribute.
(a + 8)(a -3)
FOIL:
First, Outside, Inside, and Last
a * a = a^2
a * 3 = 3a
8 * a = 8a
8 * -3 = - 24
a^2 + 11a - 24
Distributed Expression: a^2 + 11a - 24
