Question

Two functions, f(x) = 2x2 + 3 and g(x) = x + 1.

f[g(x)] = 2x2 + 4x + 5
Select one:
True
False

Answer 1

True !!

Answer 2

f(g(x)) = f(x+1)
now put x+1 in the place of x in the f(x) every place
=2(x+1) ^2 +3
=2 (x^2 +2x +1) +3
= 2x^2 +4x +2 +3
= 2x^2 +4x+5

now the answer is TRUE
it is same as of yurs