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Given: g(x) = 3x² +2 and h(x)=2x+2

Find: g(h(x))
a-9x² + 12x+8
b-x² + 22x+8
c-2x² + 24x+14
d-There is no correct answer given
e-8x² +18x + 7

1 Answer

7 votes

Final answer:

To compute g(h(x)), substitute h(x) into g(x), which results in a composition that is not listed in the given options, making option (d) the correct answer.

Step-by-step explanation:

The question asks for the composition of two functions, which means we need to find g(h(x)). Here, g(x) = 3x² + 2 and h(x) = 2x + 2. To find g(h(x)), we substitute h(x) into every occurrence of x in g(x).

First, calculate h(x): h(x) = 2x + 2.

Now, substitute h(x) into g(x): g(h(x)) = 3(2x + 2)² + 2. Next, expand (2x + 2)²: (2x + 2)² = 4x² + 8x + 4.

Substitute this back into the g(x) equation: g(h(x)) = 3(4x² + 8x + 4) + 2 = 12x² + 24x + 12 + 2 = 12x² + 24x + 14.

The correct answer is not listed in the options provided by the student, which means the choice is (d) There is no correct answer given.

answered
User Jonathan Leffler
by
7.6k points
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