13/4 and 3 1/4
Hope this helps
Answer:
-14.9
Step-by-step explanation:
just remove the parenthesis and add
We were given;
f(x) = x² + x + 2
and
g(x) = 2x + 5
f(g(x)) = f(2x+5)
= (2x+5)²+(2x+5)+2
Expanding brackets gives;
=(2x)²+2(2x)(5) +5²+(2x+5)+2
Simplifying gives;
= 4x² +20x+25+ 2x+5+2
f(g(x))= 4x² +22x +32
