Tuesday, January 5, 2016

If h(x) = x^3+ x and g(x) = 2x + 3, then g(h(2)) = ?

Given that:


h(x) = x^3 +
x


g(x) = 2x+ 3


We need to find
g(h(2))


First we will determine the values of
h(2).


==> h(2) = 2^3 + 2 = 8+2 =
10


Now we will substitute into
g(h(2)


==> g(h(2)) =
g(10)


Now we will substitute into
g(x).


==> g(10) = 2*10 + 3 =
23


==> g(h(2)) =
23

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