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lorasvet [3.4K]
3 years ago
12

Can anyone help?....

Mathematics
2 answers:
stepan [7]3 years ago
8 0
<span>The answer two this question is C.

You can get this answer by multiplying the two polynomials and then simplifying. See the steps below:
(4x^2 - 5)(x + 3) ---> Now multiply the two parenthesis. 
4x^3 - 5x + 12x^2 - 15 ---> Arrange the numbers by decreasing  exponents. 
4x^3 + 12x^2 - 5x - 15

No simplifying can be done since there are no like terms. </span>
Vlad1618 [11]3 years ago
7 0

Answer: fg(x)=4x^3+12x^2-5x-15

Step-by-step explanation:

Given: f(x)=4x^2-5\text{ and } g(x)=x+3

We know that for any function f(x) and g(x), the multiplication function (fg) (x) is given by :-

fg(x)=f(x)g(x)

Now, for the given functions, we have

fg(x)=(4x^2-5)(x+3)\\\\\Rightarrow\ fg(x)=4x^2(x+3)-5(x+3)\\\\\Rightarrow\ fg(x)=4x^3+12x^2-5x-15

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<h3>How to calculate the fraction?</h3>

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\text{Hello There!}

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