Gibson Martinez
09/22/2023 · High School
\( 16 c^{4}-62 c^{3}+48 c^{2}-18 c \) enter \( 2 c 2+6 c+5 \)
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Tutor-Verified Answer
Step-by-step Solution
To simplify the expression \( 16c^{4} - 62c^{3} + 48c^{2} - 18c \) by dividing it by \( 2c^2 + 6c + 5 \), we can perform polynomial long division.
1. **Set up the division**: We want to divide \( 16c^{4} - 62c^{3} + 48c^{2} - 18c \) by \( 2c^2 + 6c + 5 \).
2. **Divide the leading terms**:
- The leading term of the dividend is \( 16c^4 \) and the leading term of the divisor is \( 2c^2 \).
- Divide \( 16c^4 \) by \( 2c^2 \) to get \( 8c^2 \).
3. **Multiply and subtract**:
- Multiply \( 8c^2 \) by \( 2c^2 + 6c + 5 \):
\[
8c^2(2c^2 + 6c + 5) = 16c^4 + 48c^3 + 40c^2
\]
- Subtract this from the original polynomial:
\[
(16c^{4} - 62c^{3} + 48c^{2} - 18c) - (16c^{4} + 48c^{3} + 40c^{2}) = -110c^{3} + 8c^{2} - 18c
\]
4. **Repeat the process**:
- Now divide the leading term \( -110c^3 \) by \( 2c^2 \) to get \( -55c \).
- Multiply \( -55c \) by \( 2c^2 + 6c + 5 \):
\[
-55c(2c^2 + 6c + 5) = -110c^3 - 330c^2 - 275c
\]
- Subtract this from the current polynomial:
\[
(-110c^{3} + 8c^{2} - 18c) - (-110c^{3} - 330c^{2} - 275c) = 338c^{2} + 257c
\]
5. **Continue the process**:
- Divide \( 338c^2 \) by \( 2c^2 \) to get \( 169 \).
- Multiply \( 169 \) by \( 2c^2 + 6c + 5 \):
\[
169(2c^2 + 6c + 5) = 338c^2 + 1014c + 845
\]
- Subtract this from the current polynomial:
\[
(338c^{2} + 257c) - (338c^{2} + 1014c + 845) = -757c - 845
\]
6. **Final result**:
- The remainder is \( -757c - 845 \).
- Thus, the result of the division is:
\[
8c^2 - 55c + 169 + \frac{-757c - 845}{2c^2 + 6c + 5}
\]
So, the final answer is:
\[
8c^2 - 55c + 169 - \frac{757c + 845}{2c^2 + 6c + 5}
\]
Quick Answer
The result of the division is \( 8c^2 - 55c + 169 - \frac{757c + 845}{2c^2 + 6c + 5} \).
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