Answer:
a). 0
Step-by-step explanation:
f(1) = 1 - 1
= 0
(combine liked terms)
Hope this helps!
x=4 y=9
i said so
4 x 3 + 6
12 + 6
= 18
or
4 x (3+6)
4 x 9
= 36
depends whether the 3+6 is in brackets :)
