Question
Divide. If the polynomial does not divide evenly, include the remainder as a fraction. \[ (-10 w+10) \div(5 w-3) \] Submit
Ask by Bowen Page. in the United States
Jan 27,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
\[
-2 + \frac{4}{5w - 3}
\]
Solution
To divide the polynomial \(-10w + 10\) by \(5w - 3\), follow these steps:
1. **Set Up the Division:**
\[
\frac{-10w + 10}{5w - 3}
\]
2. **Determine the Quotient:**
Since both the dividend and the divisor are linear polynomials, the quotient will be a constant. Let \(a\) be this constant:
\[
-10w + 10 = a(5w - 3) + R
\]
3. **Solve for \(a\):**
Compare the coefficients of \(w\) on both sides:
\[
-10 = 5a \quad \Rightarrow \quad a = -2
\]
4. **Find the Remainder \(R\):**
Substitute \(a = -2\) back into the equation:
\[
-10w + 10 = -2(5w - 3) + R \\
-10w + 10 = -10w + 6 + R \\
10 = 6 + R \quad \Rightarrow \quad R = 4
\]
5. **Write the Final Answer:**
Combine the quotient and the remainder:
\[
\frac{-10w + 10}{5w - 3} = -2 + \frac{4}{5w - 3}
\]
**Final Answer:**
\[
-2 + \frac{4}{5w - 3}
\]
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Bonus Knowledge
To divide the polynomial \((-10w + 10)\) by \((5w - 3)\), we can rewrite the process similar to long division. Start by examining how many times \(5w\) fits into \(-10w\), which is \(-2\). Multiply \(-2\) by \((5w - 3)\) to get \(-10w + 6\). Now subtract this from the original polynomial: \[ (-10w + 10) - (-10w + 6) = 10 - 6 = 4 \] The remainder is 4. Therefore, the complete division gives us: \[ (-10w + 10) \div (5w - 3) = -2 + \frac{4}{5w - 3} \]