Wells Franklin
10/18/2023 · Junior High School
fiven that \( f(x)=x^{2}+14 x+48 \) and \( g(x)=x+6 \), find \( (f \div g)(x) \) and expres he result as a polynomial in simplest form.
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Tutor-Verified Answer
Step-by-step Solution
To find \( (f \div g)(x) \), we need to perform polynomial long division of \( f(x) = x^2 + 14x + 48 \) by \( g(x) = x + 6 \).
1. **Set up the division**: We want to divide \( x^2 + 14x + 48 \) by \( x + 6 \).
2. **Divide the leading terms**:
\[
\frac{x^2}{x} = x
\]
So, the first term of the quotient is \( x \).
3. **Multiply and subtract**:
Multiply \( x \) by \( g(x) \):
\[
x(x + 6) = x^2 + 6x
\]
Now subtract this from \( f(x) \):
\[
(x^2 + 14x + 48) - (x^2 + 6x) = 14x - 6x + 48 = 8x + 48
\]
4. **Repeat the process**: Now we divide \( 8x + 48 \) by \( x + 6 \).
\[
\frac{8x}{x} = 8
\]
So, the next term of the quotient is \( 8 \).
5. **Multiply and subtract again**:
Multiply \( 8 \) by \( g(x) \):
\[
8(x + 6) = 8x + 48
\]
Now subtract this from \( 8x + 48 \):
\[
(8x + 48) - (8x + 48) = 0
\]
Since the remainder is \( 0 \), we have completed the division.
6. **Write the result**: The result of the division is:
\[
(f \div g)(x) = x + 8
\]
Thus, the final answer is:
\[
\boxed{x + 8}
\]
Quick Answer
\( (f \div g)(x) = x + 8 \)
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