Problem
g(a)=2a^2-5a
h(a)=3a-5
find (g+h)(a/3)
Solution
For this case we have:
g+h (a) = 2a^2 -5a +3a -5 = 2a^2 -2a -5
And replacing a/3 instead of a we got:
g+h (a/3) = 2 (a/3)^2 -2(a/3) -5
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