+318 Can anyone help me with THE LAST PART OF #7 AND #8 thank you:)))
+128406 7)
f(x) + f(2) = f ( x + 2)
8)
f(a) = 9(a)^2 + 8
f(a + h) = 9(a + h)^2 + 8 = 9(a^2 + 2ah + h^2) + 8 = 9a^2 + 18ah + 9h^2 + 8
f (a + h) - f(a) [ 9a^2 + 18ah + h^2 + 8 ] - [ 9a^2 + 8] 18ah + h^2
___________ = ______________________________ = _________ =
h h h
h ( 18a + h)
_________ = 18a + h
h
