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Elan Coil [88]
3 years ago
13

Which expression is equal to (f - g)(x)?

Mathematics
2 answers:
inna [77]3 years ago
7 0

ANSWER

A. x-8

EXPLANATION

The given functions are:

f(x) =  {x}^{2}  - 11x + 24

We factor this to get,

f(x) = (x - 8)(x - 3)

and

g(x) = x - 3

( \frac{f}{g} )(x) =  \frac{f(x)}{g(x)}

( \frac{f}{g} )(x) =  \frac{ {x}^{2}  - 11x + 24}{x - 3}  \:  for\: x \ne3

( \frac{f}{g} )(x) =  \frac{(x - 8)(x - 3)}{x - 3}

Cancel the common factors to get,

( \frac{f}{g} )(x) = x - 8

enot [183]3 years ago
5 0

Answer: OPTION A

Step-by-step explanation:

You need to divide the function f(x) by the function g(x):

Then:

(\frac{f}{g})(x)=\frac{x^2-11x+24}{x-3}

Now, you need to simplify:

Factor the numerator. Find two numbers whose sum be -11 and whose product be 24. Theses numbers are -8 and -3. Then you get:

(\frac{f}{g})(x)=\frac{(x-8)(x-3)}{x-3}

Remember that:

\frac{a}{a}=1

Then, you get that the expresson that is equal to  (\frac{f}{g})(x) is:

 (\frac{f}{g})(x)=(x-8)

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