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4 votes
Use these functions to answer this question.

P(x) = x2
– x – 6
Q(x) = x – 3
What is P(x) – Q(x)?
A. x2
– 3
B. x2
– 9
C. x2
– 2x – 3
D. x2
– 2x – 9


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1 Answer

3 votes

Given:

The two functions are:


P(x)=x^2-x-6


Q(x)=x-3

To find:

The function
P(x)-Q(x).

Solution:

We need to find the function
P(x)-Q(x).


P(x)-Q(x)=(x^2-x-6)-(x-3)


P(x)-Q(x)=x^2-x-6-x+3


P(x)-Q(x)=x^2+(-x-x)+(-6+3)


P(x)-Q(x)=x^2-2x-3

Therefore, the correct option is C.

User Bokonic
by
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